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→ MOLECULES IN ICE ←
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| OTHER LISTS OF INTERSTELLAR & CIRCUMSTELLAR MOLECULES | |
| Wikipedia List of interstellar and circumstellar molecules | |
| Cologne Database | |
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Extragalactic (xgal) detections (as collected for the most part in the Cologne Database) are linked to galaxy images. | ||
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NOTES: (1) Molecules are ordered by first year of reported discovery, though some identifications required confirmation by subsequent observations. (2) Identifications explicitly considered to be tentative are indicated with italics; recent detections are implicitly tentative. (3) Detections currently under dispute are indicated with orange text. (4) 20 March 2017—In trying to decide how to categorize the 2015 optical/infrared detection of CrO, it appears to have been found in cooler (~300 K) outflow material from the stellar-merger remnant V1309 Scorpii, not in a stellar atmosphere (though some of the other molecular bands reported by Kamiński et al. are associated with much higher temperatures); the nature of red novae are still being debated by the community. | ||
| YEAR | SPECIES | CITATION | SOURCE(S)/LINES | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1937
LMC | CH+ methylidyne cation 
|
Interstellar Neutral Potassium and Neutral Calcium
T. Dunham, Jr., Publ Astron Soc Pac 49:26-28 (1937) Some Results with the COUDÉ Spectrograph of the Mount Wilson Observatory W. S. Adams, ApJ 93:11-23 (1941) Note on CH+ in Interstellar Space and in the Laboratory A. E. Douglas and G.Herzberg, ApJ 94:381 (1941) |
ζ Oph, ξ Per, χ2 Ori, 55 Cyg (0,0), (1,0), and (2,0) bands of the A 1Π - X 1Σ system at 4232.6, 3957.7, & 3745.3  |
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| 1937
LMC | CH methylidyne
|
Considerations Regarding Interstellar Molecules
P. Swings and L. Rosenfeld, ApJ 86:483-486 (1937) Evidence for the Molecular Origin of Some Hitherto Unidentified Interstellar Lines A. McKellar, Publ Astron Soc Pac 52:187-192 (1940) Some Results with the COUDÉ Spectrograph of the Mount Wilson Observatory W. S. Adams, ApJ 93:11-23 (1941) Radio Detection of Interstellar CH O. E. H. Rydbeck, J. Elldér, and W. M. Irvine, Nature 246:246-248 (1973) Hubble Space Telescope Measurements of Vacuum Ultraviolet Lines of Interstellar CH Y. Sheffer and S. R. Federman, ApJ 659:1353-1359 (2007) |
ζ Oph vis lines at 3878.8, 3886.4, 3890.2, & 4300.3 ;
uv lines near 1271, 1368, 1369, 1370, 1549, & 1694 ;
Cas A and 4 dark clouds J = 1/2, ν01 (3263.794 MHz) J = 1/2, ν11 (3335.481 MHz) J = 1/2, ν10 (3349.193 MHz) |
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1940
NGC253 | CN cyano radical
|
Evidence for the Molecular Origin of Some Hitherto Unidentified Interstellar Lines
A. McKellar, Publ Astron Soc Pac 52:187-192 (1940) Some Results with the COUDÉ Spectrograph of the Mount Wilson Observatory W. S. Adams, ApJ 93:11-23 (1941) Observation of the CN Radical in the Orion Nebula and W51 K. B. Jefferts, A. A. Penzias, and R. W. Wilson, ApJ 161:L87-L89 (1970) |
ζ Oph lines at 3874.02 & 3874.61 Orion nebula, W51 J = 1  0 (113492 MHz) |
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1963
M82 | OH hydroxyl radical
|
Radio Observations of OH in the Interstellar Medium
S. Weinreb, A. H. Barrett, M. L. Meeks, and J. C. Henry, Nature 200:829-831 (1963) |
Cas A F=2 2 (1667.357 MHz)F=1 1 (1665.402 MHz) |
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1968
IC342 | NH3 ammonia
|
Detection of NH3 Molecules in the Interstellar Medium by Their Microwave Emission
A. C. Cheung, D. M. Rank, C. H. Townes, D. D. Thornton, and W. J. Welch, Phys Rev Lett 25:1701-1705 (1968) |
galactic center J=1, K=1 inversion line J=2, K=2 inversion line |
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1969
M33 | H2O water
|
Delection of Water in Interstellar Regions by its Microwave Radiation
A. C. Cheung, D. M. Rank, C. H. Townes, D. D. Thornton, and W. J. Welch, Nature 221:626 (1969) |
Sgr B2, Orion nebula, W49 616 523 (1.35 cm) |
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1969
NGC4945 | H2CO formaldehyde
|
Microwave Detection of Interstellar Formaldehyde
L. E. Snyder, D. Buhl, B. Zuckerman, and P. Palmer, Phys Rev Lett 22:679-681 (1969) |
Numerous sources 111-110 (4830 MHz) |
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| 1970
NGC253 | CO carbon monoxide
|
Carbon Monoxide in the Orion Nebula
R. W. Wilson, K. B. Jefferts, and A. A. Penzias, ApJ 161:L43-L44 (1970) Observation of CO Emission at 2.6 Millimeters from IRC +10216 P. Solomon, K. B. Jefferts, A. A.Penzias, and R. W. Wilson, ApJ 163:L53-L56 (1971) Carbon Monoxide in the Interstellar Spectrum of Zeta Ophiuchi A. M. Smith and T. P. Stecher, ApJ 164:L43-L47 (1971) |
Orion nebula, IRC +10216 1-0 (115271.2 MHz) ζ Oph Eight UV-vis transitions in the ( A 1   X
1 + ) fourth positive system |
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1970
NGC1068 | H2 hydrogen
|
Rocket Observation of Interstellar Molecular Hydrogen
G. R. Carruthers, ApJ 161:L81-L85 (1970) |
 Perseilines from the Lyman series for (B 1 u
X 1g) |
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| 1970
M82 | HCO+ formyl cation
|
Unidentified Interstellar Microwave Line
D. Buhl and L. E. Snyder, Nature 228:267 (1970) Laboratory Microwave Spectrum of HCO+ R. C. Woods, T. A. Dixon, R. J. Saykally, and P. G.Szanto, Phys Rev Lett 35:1269 (1975) |
Orion, W51, W3(OH), L134, Sgr A(NH3A) J=1-0 (89.19 GHz) |
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| 1970
IC342 | CH3OH methanol
|
Detection of Methyl Alcohol in Sagittarius
J. A. Ball, C. A. Gottlieb, A. E. Lilley, and H. E. Radford, ApJ 162:L203-L210 (1970) |
Sgr A, Sgr B2 K-type doubling transition (834 MHz) |
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| 1971
NGC253 | HC3N cyanoacetylene
|
Detection of Interstellar Cyanoacetylene
B. E. Turner, ApJ 163:L35-L39 (1971) |
Sgr B2 J = 0 1 features (9097.7 MHz) |
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| 1971
M82 | HCN hydrogen cyanide
|
Observations of Radio Emission from Interstellar Hydrogen Cyanide
L. E. Snyder and D. Buhl, ApJ 163:L47-L52 (1971) |
W3(OH), Orion A, and 4 other sources J = 1-0 (88.6 GHz) |
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1971
PKS1830-211 | HCOOH formic acid
|
Microwave Detection of Interstellar Formic Acid
B. Zuckerman, J. A. Ball, and C. A. Gottlieb, ApJ 163:L41-L45 (1971) Detection of Formic Acid in Sagittarius B2 by its 211-212 Transition G. Winnewisser and E. Churchwell, ApJ 200:L33-L36 (1975) |
Sgr B2 211-212 (4916 MHz) |
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| 1971
NGC253 | SiO silicon monoxide
|
Discovery of Interstellar Silicon Monoxide
R. W. Wilson, A. A. Penzias, K. B. Jefferts, N. Kutner, and P. Thaddeus, ApJ 167:L97-L100 (1971) Detection of Silicon Monoxide at 87 GHz D. F. Dickinson, ApJ 175:L43-L46 (1972) |
Sgr B2, Orion A 2-1 (86847 MHz) 3-2 (130246 MHz) |
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| 1971
M82 | CS carbon monosulfide
|
Interstellar Carbon Monosulfide
A. A. Penzias, P. M. Solomon, R. W. Wilson, A. A. Penzias, and K. B. Jefferts, ApJ 168:L53-L58 (1971) Observations of CS, HCN, U89.2, and U90.7 in NGC 2264 B. Zuckerman, M. Morris, P. Palmer, and B. E. Turner, ApJ 173:L125-L129 (1972) |
Orion A, W51, IRC +10216, DR 21 3-2 (146969.16 MHz) NGC2264 2-1 (??? MHz) |
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| 1971
NGC253 | CH3CN methyl cyanide
|
Detection of Millimeter Emission Lines from Interstellar Methyl Cyanide
P. M. Solomon, K. B. Jefferts, A. A. Penzias, and R. W. Wilson, ApJ 168:L107-L110 (1971) |
Sgr A, Sgr B J = 6 5, K = 0 (110.3825 GHz)J = 6 5, K = 1 (110.3814 GHz)J = 6 5, K = 2 (110.3750 GHz)J = 6 5, K = 3 (110.3645 GHz)J = 6 5, K = 4 (110.3497 GHz)J = 6 5, K = 5 (110.3207 GHz) |
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| 1971
NGC253 | OCS carbonyl sulfide
|
Detection of Interstellar Carbonyl Sulfide
K. B. Jefferts, A. A. Penzias, P. M. Solomon, and P. M. Solomon, ApJ 168:L111-L113 (1971) |
Sgr B2 9-8 (109462.8 MHz) |
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| 1971
PKS1830-211 | NH2CHO formamide
|
Microwave Detection of Interstellar Formamide
R. H. Rubin, G. W. Swenson, Jr., R. C. Solomon, and H. L. Flygare, ApJ 169:L39-L44 (1971) |
Sgr B2 211-212 (4620 MHz) |
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| 1972
IC342 | HNC hydrogen isocyanide
|
Detection of Several New Interstellar Molecules
L. E. Snyder and D. Buhl, Ann N Y Acad Sci 146:13 (1972) Observations of CS, HCN, U89.2, and U90.7 in NGC 2264 B. Zuckerman, M. Morris, P. Palmer, and B. E. Turner, ApJ 173:L125 (1972) The Microwave Spectrum of HNC: Identification of U90.7 G. L. Blackman, R. D. Brown, P. D. Godfrey, and H. I. Gunn, Nature 261:395 (1976) The First Mid-infrared Detection of HNC in the Interstellar Medium: Probing the Extreme Environment toward the Orion Hot Core S. Nickerson, N. Rangwala, S. W. J. Colgan, C. DeWitt, X. Huang, K. Acharyya, M. Drozdovskaya, R. C. Fortenberry, E. Herbst, and T. J. Lee. ApJ 907:51 (2021). |
W51, NGC 2264 J = 1-0 (90665.0 MHz) Orion IRc2 P, Q, and R rovibrational branches |
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| 1972
LMC | H2S hydrogen sulfide
|
Interstellar Hydrogen Sulfide
P. Thaddeus, M. L. Kutner, A. A. Penzias, R. W. Wilson, and K. B. Jefferts, ApJ 176:L73-L76 (1972) |
7 sources 110-101 (168.7 GHz) |
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| 1972
NGC253 | HNCO isocyanic acid
|
Interstellar Isocyanic Acid
L. E. Snyder and D. Buhl, ApJ 177:619-623 (1972) |
Sgr B2 404-303 (87925 MHz) 101-000 (21982 MHz) |
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| 1973
PKS1830-211 | CH3CHO acetaldehyde
|
Detection of Acetaldehyde in Sagittarius
C. A. Gottlieb, Molecules in the Galactic Environment (eds. M. A. Gordon and L. E. Snyder), Wiley-Interscience, New York, 181-186 (1973) Microwave Emission of the 211 → 212 Rotational Transition in Interstellar Acetaldehyde N. Fourikis, M. W. Sinclair, B. J. Robinson, P. D. Godfrey, and R. D. Brown, Aust J Phys 27:425-430 (1974) Observation of the 616-515 Transitions of acetaldehyde in Sagittarius B2 W. Gilmore, M. Morris, P. Palmer, D. R. Johnson, F. J. Lovas, B. E. Turner, and B. Zuckerman, ApJ 204:43-46 (1976) |
Sgr B2 110-111 (1065 MHz) 211-212 (3195 MHz) 616-515 (112250 MHz) |
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| 1973
NGC253 | CH3CCH methylacetylene
|
The Detection of a MM-Wave Transition of Methlacetylene
D. Buhl and L. E. Snyder, Molecules in the Galactic Environment (eds. M. A. Gordon and L. E. Snyder), Wiley-Interscience, New York, 187-195 (1973) |
Sgr B2 50-40 (85.45729 GHz) |
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1973
Arp 220 | CH2NH methanimine
|
Discovery of Interstellar Methanimine (Formaldimine)
P. D. Godfrey, R. D. Brown, B. J. Robinson, and M. W. Sinclair, Astrophys Lett 13:119 (1973) |
??? ??? |
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| 1973
LMC | H2CS thioformaldehyde
|
Detection of Interstellar Thioformaldehyde
M. W. Sinclair, N. Fourikis, J. C. Ribes, B. J. Robinson, R. D. Brown, and P. D. Godfrey, Aust J Phys 26:85-91 (1973) |
Sgr B2 211-212 (3139.38 MHz) |
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| 1973
LMC | SO sulfur monoxide
|
Interstellar Sulfur Monoxide
C. A. Gottlieb and J. Ball, ApJ 184:L59-L64 (1973) |
Orion A, etc. 32-21 (99295.85 MHz) 43-32 (138178.60 MHz) |
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| 1974
NGC1068 | CH3OCH3 dimethyl ether
|
Radio Detection of Interstellar Dimethyl Ether
L. E. Snyder, D. Buhl, P. R. Schwartz, F. O. Clark, D. R. Johnson, F. J. Lovas and P. T. Giguere, ApJ 191:L79-L82 (1974) |
Orion Nebula 606 515 (90.9 GHz)220 211 (86.2 GHz)211 202 (31.1 GHz) |
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| 1974
PKS1830-211 | CH3NH2 methylamine
|
Detection of Interstellar Methylamine
N. Kaifu, M. Morimoto, K. Nagane, K. Akabane, T. Iguchi, and K. Takagi, ApJ 191:L135-L137 (1974) Detection of Interstellar Methylamine by its 202→110 Aa-State Transition N. Fourikis, K. Takagi, and M. Morimoto, ApJ 191:L139-L141 (1974) |
Sgr B2, Orion A 515-505 (73.0 GHz) 414-404 (86.1 GHz) 202-110 (3.5 cm) |
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1974
NGC6946 | N2H+ protonated nitrogen
|
U93.174 - A New Interstellar Line with Quadrupole Hyperfine Splitting
B. E. Turner, ApJ 193:L83-L87 (1974) Tentative Identification of U93.174 as the Molecular Ion N2H+ S. Green, J. A. Montgomery, Jr., and P. Thaddeus, ApJ 193:L89-L91 (1974) |
many sources J = 1 0 triplet (93.174 GHz) |
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| 1974
M82 | C2H ethynyl radical
|
The Ethynyl Radical C2H - A New Interstellar Molecule
K. D. Tucker, M. L. Kutner, and P. Thaddeus, ApJ 193:L115-L119 (1974) |
Orion A, etc. (3/2,2)-(1/2,1) (87284.4 MHz) (3/2,1)-(1/2,0) (87317.1 MHz) (1/2,1)-(1/2,1) (87328.7 MHz) (1/2,0)-(1/2,1) (87402.1 MHz) |
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| 1975
PKS1830-211 | CH2CHCN vinylcyanide
|
The Detection of Interstellar Vinyl Cyanide (Acrylonitrile)
F. F. Gardner and G. Winnewisser, ApJ 195:L127-L130 (1975) |
Sgr B2 211-212 (1372 MHz) |
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| 1975 | CH3CH2OH ethanol
|
Detection of Interstellar trans-Ethyl Alcohol
B. Zuckerman, B. E. Turner, D. R. Johnson, F. O. Clark, F. J. Lovas, N. Fourikis, P. Palmer, M. Morris, A. E. Lilley, J. A. Ball, C. A. Gottlieb, and H. Penfield, ApJ 196:L99-L102 (1975) Gauche Ethyl Alcohol: Laboratory Assignments and Interstellar Identification J. C. Pearson, K. V. L. N. Sastry, E. Herbst, and F. C. De Lucia, ApJ 480:420 (1997) |
Sgr B2 606-515 (85265.46 MHz) 414-303 (90117.51 MHz) 515-440 (104808.58 MHz) |
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| 1975 | HCOOCH3 methyl formate
|
Discovery of Interstellar Methyl Formate
R. D. Brown, J. G. Crofts, P. D. Godfrey, F. F. Gardner, B. J. Robinson, and J. B. Whiteoak, ApJ 197:L29-L31 (1975) Observations of Methyl Formate in the Galactic Center E. Churchwell and G. Winnewisser, A&A 45:229-231 (1975) Laboratory and Tentative Interstellar Detection of Trans-Methyl Formate Using the Publicly Available Green Bank Telescope Primos Survey J. L. Neill, M. T. Muckle, D. P. Zaleski, A. L. Steber, B. H. Pate, V. Lattanzi, S. Spezzano, M. C. McCarthy, and A. J. Remijan , ApJ 755, 143 (2012) Infrared spectra of complex organic molecules in astronomically relevant ice matrices - III. Methyl formate and its tentative solid-state detection J. Terwisscha van Scheltinga, G. Marcandalli, M. K. McClure, M. R. Hogerheijde, and H. Linnartz. A&A 651:A95 (2021). |
cis isomer: Sgr B2 A: 110-111 (1610.249 MHz) E: 110-111 (1610.906 MHz) trans isomer: Sgr B2(N) A: 100-000 (9224.221 MHz) A: 202-101 (18247.038 MHz) A: 211-110 (18575.916 MHz) A: 303-202 (27367.048 MHz) E: 10-00 (9207.427 MHz) E: 20-10 (18367.848 MHz) E: 30-20 (27440.992 MHz) HH 46 (tent) vibrational features | ||||||||||||||||||
| 1975
NGC253 | SO2 sulfur dioxide
|
Radio Detection of Interstellar Sulfur Dioxide
L. E. Snyder, J. M. Hollis, B. L. Ulich, F. J. Lovas, D. R. Johnson, and D. Buhl, ApJ 198:L81-L84 (1975) |
Orion A 817-808 (83688.074 MHz) 835-928 (86639.100 MHz) 735-826 (97702.352 MHz) |
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| 1975 | SiS silicon monosulfide
|
Detection of Interstellar SiS and a Study of the IRC +10216 Molecular Envelope
M. Morris, W. Gilmore, P. Palmer, B. E. Turner, and B. Zuckerman, ApJ 199:L47-L51 (1975) |
IRC +10216 5-4 (90771.85 MHz) 6-5 (108924.64 MHz) |
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| 1975
NGC253 | NS nitrogen monosulfide
|
Detection of Interstellar Nitrogen Sulfide
C. A. Gottlieb, J. A. Ball, E. W. Gottlieb, C. J. Lada, and H. Penfield, ApJ 200:L147-L149 (1975) Detection of 2.6-millimeter Radiation Probably Due to Nitrogen Sulfide T. B. H. Kuiper, R. K. Kakar, E. N. Rodriguez Kuiper, and B. Zuckerman, ApJ 200:L151-L143 (1975) |
Sgr B2 2  1/2 J=5/2-3/2 c-state (115.16 GHz)2 1/2 J=5/2-3/2 d-state (115.6 GHz) |
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| 1975
NGC253 | NH2CN cyanamide
|
Microwave Detection of Interstellar Cyanamide
B. E. Turner, H. S. Liszt, N. Kaifu, and A. G. Kisliakov, ApJ 201:L149-L:152 (1975) |
Sgr B2 413-312 (80504.5 MHz) 514-413 (100629.5 GHz) |
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| 1976 | HC5N cyanodiacetylene
|
Detection of the Heavy Interstellar Molecule Cyanodiacetylene
L. W. Avery, N. W. Broten, J. M. McLeod, T. Oka, and H. W. Kroto, ApJ 205:L173-L175 (1976) Evidence for Weak Maser Action in Interstellar Cyanodiacetylene N. W. Broten, J. M. McLeod, T. Oka, L. W. Avery, J. W. Brooks, R. X. McGee, and L. M. Newton, ApJ 209:L143-L147 (1976) |
Sgr B2 J=1-0 (2662.87 MHz) J=4-3 (10650.64 MHz) J=8-7 (21301 MHz) |
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| 1976
NGC253 | HCO formyl radical
|
Radio Detection of the Interstellar Formyl Radical
L. E. Snyder, J. M. Hollis, and B. L. Ulich, ApJ 208:L91-L94 (1976) |
W3, NGC 2024, W51, K3-50 101-000, J=3/2-1/2, F=2-1 (86670.65 MHz) |
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| 1976
LMC | C2H2 acetylene
|
Circumstellar acetylene in the infrared spectrum of IRC + 10 216
S. T. Ridgway, D. N. B. Hall, R. S. Wojslaw, S. G. Kleinmann, and D. A. Weinberger, Nature 464:345-346 (1976) Discovery of Interstellar Acetylene J. H. Lacy, N. J. Evans II, J. M. Achtermann, D. E. Bruce, J. F. Arens, and J. S. Carr, ApJ 342:L43-L46 (1989) |
IRC +10 216 Q-branch of ν4+ν5 band GL 2591, W3 IRS 5, & OMC-1 IRc2 lines in the 13.7 µm  5vibration-rotation band |
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| 1977
PKS1830-211 | C3N cyanoethynyl radical
|
Tentative Detection of the C3N Radical
M. Guélin and P. Thaddeus, ApJ 212:L81-L85 (1977) Interstellar C3N - Detection in Taurus Dark Clouds P. Friberg, Å. Hjalmarson, W. M. Irvine and M. Guélin, ApJ 241:L99-L103 (1980) |
IRC +10216 J = 9 8 (89045.7 MHz)J = 9 8 (89064.4 MHz)J = 10 9 (98939.9 MHz)J = 10 9 (98958.6 MHz)(two doublet features) TMC-1, TMC-2 N = 3 2 hf struct (29.7 GHz) |
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| 1977
PKS1830-211 | H2CCO ketene
|
Microwave Detection of Interstellar Ketene
B. E. Turner, ApJ 213:L75-L79 (1977) |
Sgr B2 413 - 312 (81586.19 MHz) 515 - 414 (100094.51 MHz) 512 - 413 (101981.39 MHz) |
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| 1977 | C2 dicarbon
|
Detection of C2 in the interstellar spectrum of Cygnus OB2 number 12(VI Cygni Number 12)
S. P. Souza and B. L. Lutz, ApJ 216:L49-L51 (1977) |
Cygnus OB2 No. 12 R- & Q-branch lines of the (1-0) Philips band |
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| 1977 | HNO nitrosyl hydride
|
Radio Detection of Nitroxyl (HNO): The First Interstellar NO Bond
B. L. Ulich, J. M. Hollis, and L. E. Snyder, ApJ 217:L105-L107 (1977) Interstellar HNO: Confirming the Identification J. M. Hollis, L. E. Snyder, L. M. Ziurys, and D. McGonagle, Atoms, ions and molecules: New results in spectral line astrophysics, ASP Conf Ser 16:407 (1991) New 3 millimeter Observations of Interstellar HNO - Reinstating a Discredited Identification L. E. Snyder, Y.-J. Kuan, L. M. Ziurys, and J. M. Hollis, ApJ 403:L17-L20 (1993) New Detections of Interstellar HNO at 2 and 1.2 millimeters: More N-O Bonds L. M. Ziurys, J. M. Hollis, and L. E.; Snyder, ApJ 430:706-712 (1994) |
Sgr B2, NGC 2024, etc. 101-000 (81477.49 MHz) 202-101 (162937.949 MHz) 303-202 (244364.054 MHz) |
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| 1977 | CH3CH2CN
ethyl cyanide
|
Detection of Interstellar Ethyl Cyanide
D. R. Johnson, F. J. Lovas, C. A. Gottlieb, E. W. Gottlieb, M. M. Litvak, M. Guélin, and P. Thaddeus, ApJ 218:370-376 (1977) |
OMC-1, Sgr B2 24 mm wavelength lines |
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| 1978 | HC7N cyanotriacetylene
|
The Detection of Cyanohexatriyne in Heiles's Cloud 2
H. W. Kroto, C. Kirby, D. R. M. Walton, L. W. Avery, N. W. Broten, J. M. MacLeod, and T. Oka, ApJ 219:L133-L137 (1978) Observations of Interstellar HC5N and HC7N in Dark Dust Clouds L. T. Little, G. H. MacDonald, P. W. Riley, and D. N. Matheson, MNRAS 183:45P-50P (1978) The Detection of HC5N and HC7N in IRC +10216 G. Winnewisser and C. M. Walmsley, A&A 70:L37-L39 (1978) |
Heiles 2 (& TMC2) 9-8 (10152.002 MHz) 21-20 (23687.890 MHz) 22-21 (24815.870 MHz) IRC +10216 9-8 (23687.9 MHz) |
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| 1978 | HC9N cyanotetraacetylene
|
The Detection of HC9N in Interstellar Space
N. W. Broten, T. Oka, L. W. Avery, J. M. MacLeod, and H. W. Kroto, ApJ 223:L105-L107 (1978) |
Heile's Cloud 2 J = 18 17 (10458.634 MHz)J = 25 24 (14525.862 MHz)9-8 (23963.897 MHz) |
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| 1978
PKS1830-211 | C4H butadiynyl radical
|
Detection of the C4H Radical toward IRC +10216
M. Guélin, S. Green, and P. Thaddeus, ApJ 224:L27-L30 (1978) |
IRC +10216(OH) N = 9 8 (85633.9 MHz)N = 9 8 (85672.4 MHz)N = 10 9 (95149.5 MHz)N = 10 9 (95189.0 MHz)N = 11 10 (104667.3 MHz)N = 11 10 (104706.0 MHz)N = 12 11 (114182 MHz)N = 12 11 (114221 MHz)(doublet features) |
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| 1978
NGC253 | NO nitric oxide
|
Microwave Detection of Interstellar NO
H. S. Liszt and B. E. Turner, ApJ 224:L73-L76 (1978) |
Sgr B2(OH) 2 1/2 J=3/2-1/2 (150.2 GHz)2 1/2 J=3/2-1/2 (150.5 GHz) |
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| 1979
PKS1830-211 | CH3SH methyl mercaptan
|
Interstellar Methyl Mercaptan
R. A. Linke, M. A. Frerking, and P. Thaddeus, ApJ 234:L139-L142 (1979) |
Sgr B2
|
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| 1979 | HNCS isothiocyanic acid
|
Interstellar Isothiocyanic Acid
M. A. Frerking, R. A. Linke, and P. Thaddeus, ApJ 234:L143-L145 (1979) |
Sgr B2 707 606 (82101.67 MHz)808 707 (93829.92 MHz)909 808 (105557.95 MHz)110,11 100,10 (129013.21 MHz)120,12 110,11 (140740.39 MHz) |
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| 1983 | C2H4 ethylene
|
Ethylene in IRC +10216
A. L. Betz, ApJ 244:L103-L105 (1981) |
IRC +10216 two lines of the 7 bandat 949 cm-1 |
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| 1981
PKS1830-211 |
HCS+
|
Three New "Nonterrestrial" Molecules
P. Thaddeus, M. Guélin, and R. A. Linke, ApJ 246:L41-L45 (1971) |
Sgr B2, Orion A 2-1 (85347.90 MHz) 3-2 (128020.67 MHz) 5-4 (213360.53 MHz) 6-5 (256027.8 MHz) |
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| 1981
NGC253 |
HOCO+
|
Three New "Nonterrestrial" Molecules
P. Thaddeus, M. Guélin, and R. A. Linke, ApJ 246:L41-L45 (1981) Laboratory Detection of the Protonated Carbon Dioxide by Submillimeter Wave Spectroscopy M. Bogey, C. Demuynck, and J. L. Destombes, A&A 138:L11-L12 (1984) |
Sgr B2, Orion A 404-303 (85530.68 MHz) 505-404 (106913.36 MHz) 606-505 (128294.89 MHz) |
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| 1983
NGC1068 |
HOC+
|
The [HCO+]/[HOC+] Abundance Ratio in Molecular Clouds
R. C. Woods, C. S. Gudeman, R. L. Dickman, P. F. Goldsmith, G. R. Huguenin, W. M. Irvine, Å. Hjalmarson, L.-Å. Nyman, and H. Olofsson, ApJ 270:583-588 (1983) Confirmation of Interstellar HOC+: Reevaluating the [HCO+]/[HOC+] Abundance Ratio L. M. Ziurys and A. J. Apponi, ApJ 455:L73-L76 (1995). |
Sgr B2 J = 1 0 (89487.4 MHz)Sgr B2(OH) J = 2 1 (178972.0 MHz)J = 3 2 (268451.1 MHz) |
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| 1984 | CH3C3N
|
The Detection of Interstellar Methylcyanoacetylene
N. W. Broten, J. M. MacLeod, L. W. Avery, W. M. Irvine, B. Höglund, P. Friberg, and Å. Hjalmarson, ApJ 276:L25-L29 (1984) |
TMC-1 J = 5 4, K = 0 (20657.33 MHz)J = 6 5, K = 0 (24788.78 MHz)J = 6 5, K = 1 (24788.53 MHz)J = 7 6, K = 0 (28920.20 MHz)J = 7 6, K = 1 (28919.93 MHz)J = 8 7, K = 0 (33051.62 MHz)J = 8 7, K = 1 (33051.31 MHz) |
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| 1984 | SiH4
|
Silane in IRC +10216
D. M. Goldhaber and A. L. Betz, ApJ 279:L55-L58 (1977) |
IRC +10216 13 adsorption lines in the 4 band |
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| 1984 | CH3C4H
|
Detection of Interstellar Methyldiacetylene (CH3C4H) in the Dark Dust Cloud TMC 1
C. M. Walmsley, P. R. Jewell, L. E. Snyder, and G. Winnewisser, A&A 134:L11-L14 (1984) The detection of interstellar methyldiacetylene (CH3C4H) J. M. MacLeod, L. W. Avery, and N. W. Broten, ApJ 282:L89 (1984) The detection of interstellar methyl-diacetylene R. B. Loren, A. Wootten, and L. G. Mundy, ApJ 286:L23 (1984) |
TMC-1 J = 5 4, K = 0 (20357.423 MHz)J = 5 4, K = 1 (20357.226 MHz)J = 6 5, K = 0 (24428.886 MHz)J = 6 5, K = 1 (24428.652 MHz) |
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| 1985 | C3O
|
A New Interstellar Molecule - Tricarbon Monoxide
H. E. Matthews, W. M. Irvine, P. Friberg, R. D. Brown, and P. D. Godfrey, Nature 310:125-126 (1984) Tricarbon Monoxide in TMC-1 R. D. Brown, P. D. Godfrey, D. M. Cragg, E. H. N. Rice, W. M. Irvine, P. Friberg, H. Suzuki, M. Ohishi, N. Kaifu, and M. Morimoto, ApJ 297:302-308 (1985) |
TMC-1 2-1 (19243.523 MHz) 5-4 (48108.479 MHz) 8-7 (76972.590 MHz) 9-8 (86593.685 MHz) |
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| 1984 | c-SiC2
|
Identification of the SiCC Radical toward IRC +10216 - The First Molecular Ring in an
Astronomical Source
P. Thaddeus, S. E. Cummins, and R. A. Linke, ApJ 283:L45-L48 (1984) The first detection of SiC2 in the interstellar medium S. Massalkhi, I. Jiménez-Serra, J. Martín-Pintado, V. M. Rivilla, L. Colzi, S. Zeng, S. Martín, B. Tercero, P. de Vicente, and M. A. Requena-Torres. A&A 678:A45 (2023). |
IRC +10216 404 303 (93065 MHz)423 322 (94245 MHz)422 321 (95579 MHz)505 404 (115383 MHz)606 505 (137180 MHz)625 524 (140918 MHz)643 542 (141751 MHz)642 541 (141755 MHz)725 624 (170742 MHz)G+0.293-0.027 20,2 10,1 (47.06482 GHz)40,4 30,3 (93.06363 GHz)42,2 32,1 (95.57938 GHz)50,5 40,4 (115.38236 GHz)60,6 50,5 (137.18078 GHz)62,4 52,3 (145.32587 GHz)
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| 1985
NGC253 |
C3H
|
Astronomical Identification of the C3H Radical
P. Thaddeus, C. A. Gottlieb, Å. Hjalmarson, L. E. B. Johansson, W. M. Irvine, P. Friberg, and R. A. Linke, ApJ 294:L49-L53 (1985) |
TMC-1, 21/2 ladder 3/2-1/2,2-1 (32627.255 MHz) 1-0 (32634.344 MHz) 2-1 (32660.608 MHz) 1-0 (32663.330 MHz) IRC +10216, 2 1/2 ladder7/2-5/2 (76199.173 MHz) 7/2-5/2 (76204.541 MHz) 9/2-7/2 (97995.509 MHz) 9/2-7/2 (98012.014 MHz) 13/2-11/2 (141636.091 MHz) 13/2-11/2 (141709.087 MHz) 15/2-13/2 (163597.576 MHz) IRC +10216, 2 3/2 ladder9/2-7/2 (103319.538 MHz) 9/2-7/2 (103372.769 MHz) |
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| 1985 | HCl
|
Chlorine in Dense Interstellar Clouds - The Abundance of HCl in OMC-1
G. A. Blake, J Keene, and T. G. Phillips, ApJ 295:501-506 (1985) Vibrationally Excited H2, HCl, and NO(+) in the Diffuse Clouds Toward Zeta Ophiuchi S. R. Federman, J. A. Cardell, E. F. van Dishoeck, D. L. Lambert,and J. H. Black, ApJ 445:325-329 (1995) |
OMC-1 1-0 (625.9 GHz) ζ Oph C 1 - X 1 (0-0) R(0)
(1290.257 Å) |
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1985
NGC5128 |
c-C3H2
|
Laboratory and Astronomical Identification of Cyclopropenylidene, C3H2
P. Thaddeus, J. M. Vrtilek, and C. A. Gottlieb, ApJ 299:L63-L66 (1985) |
Sgr B2, etc. 11 radio lines |
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| 1986 | C6H
|
Detection of the Interstellar C6H Radical
H. Suzuki, M. Ohishi, N. Kaifu, S.-I. Ishikawa, and T. Kasuga, Publ Astron Soc Japan 38:911-917 (1986) Detection of a Heavy Radical in IRC +10216 - The Hexatriynyl Radical C6H? M. Guélin, J. Cernicharo, C. Kahane, J. Gomez-Gonzalez, and C. M. Walmsley, A&A 175:L5-L8 (1987) |
TMC-1 13 radio lines IRC +10216 15 radio lines |
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| 1986
NGC253 |
HCNH+
|
HCNH+: A New Interstellar Molecular Ion
L. M. Ziurys and B. E. Turner, ApJ 302:L31-L36 (1986) |
Sgr B2 1-0 (74111.3 MHz) 2-1 (148221.4 MHz) 3-2 (222329.4 MHz) |
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| 1986 | MgNC
|
A New Free Radical in IRC +10216
M. Guélin, J. Cernicharo, C. Kahane, and J. Gomez-Gonzales, A&A 157:L17-L20 (1986) Laboratory Spectroscopy of MgNC - The First Radioastronomical Identification of Mg-Bearing Molecule K. Kawaguchi, E. Kagi, T. Hirano, S. Takano, and S. Saito, ApJ 406:L39-L42 (1993) MgNC and the Carbon-Chain Radicals in IRC +10216 M. Guelin, R. Lucas, and J. Cernicharo, A&A 280:L19-L22 (1993) |
IRC +10216 7-6 (F1) (83538.0 MHz) 7-6 (F2) (83522.9 MHz) 8-7 (F1) (95469.3 MHz) 8-7 (F2) (95454.4 MHz) 9-8 (F1) (107399.8 MHz) 9-8 (F2) (107384.6 MHz) [ N' N" transitions ]
|
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| 1986 | C5H
|
Tentative Detection of the C5H Radical
J. Cernicharo, C. Kahane, J. Gómez-González, M. Guélin, A&A 164, L1-L4 (1986) Detection of the 2Π3/2 state of C5H J. Cernicharo, C. Kahane, J. Gómez-González, and M. Guélin, A&A 167:L5-L7 (1986) Detection of the Hyperfine Structure of the C5H Radical J. Cernicharo, M. Guélin, and C. M. Walmsley, A&A 172:L5-L6 (1987) |
IRC +10216 12 radio lines hyperfine structure |
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| 1986
M82 |
H3O+
|
A Search for Interstellar H3O+
A. Wootten, F. Boulanger, M. Bogey, F. Combes, P. J. Encrenaz, M. Gerin, and L. Ziurys, A&A 166:L15-L18 (1986) An Interstellar Line Coincident with the P(2,1) Transition of Hydronium (H3O+) J. M. Hollis, E. B. Churchwell, E. Herbst, and F. C. de Lucia, Nature 322:524-626 (1986) Detection of Interstellar H3O+: A Confirming Line. A. Wootten, J. G. Mangum, B. E. Turner, M. Bogey, F. Boulanger, F. Combes, P. J. Encrenaz, and M. Gerin, ApJ 390:L79-L83 (1991) |
OMC1, Sgr B2/Orion KL P(2,1) (307192.4 MHz) OMC1, Sgr B2 (3,2)-(2,2) (364797.427 MHz) |
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| 1987
NGC253 |
C2S
|
Laboratory Detection and Astronomical Identification of a New Free Radical, CCS
(3Σ–)
S. Saito, K. Kawaguchi, S. Yamamoto, M. Ohishi, H. Suzuki, and N. Kaifu, ApJ 317:L115-L119 (1987) Sulfur in IRC +10216 J. Cernicharo, C. Kahane, M. Guélin, and H. Hein, A&A 181:L9-L12 (1987) |
TMC-1, Sgr B2 11 radio lines 2 1 - 1 0 (22344.033 MHz) 4 3 - 3 2 (45379.038 MHz) 3 4 - 2 3 (43981.029 MHz) 3 3 - 2 2 (38866.439 MHz) 7 6 - 6 5 (81505.08 MHz) 8 7 - 7 6 (93870.16 MHz) 7 8 - 6 7 (99866.98 MHz) 8 8 - 7 7 (103641.8 MHz) 9 8 - 8 7 (106347.97 MHz) 11 10 - 10 9 (131552.3 MHz) 12 11 - 11 10 (144244.8 MHz) IRC +10216 7 6 - 6 5 (81505.11 MHz) 6 7 - 5 6 (86181.20 MHz) 7 7 - 6 6 (90686.00 MHz) 8 7 - 7 6 (93870.10 MHz) 7 8 - 6 7 (99866.50 MHz) 8 8 - 7 7 (103640.12 MHz) 9 8 - 8 7 (106347.40 MHz) 8 9 - 7 8 (113410.18 MHz) 11 10 - 10 9 (131551.80 MHz) 10 11 - 9 10 (140180.09 MHz) 12 12 - 11 11 (155454.20 MHz) 13 12 - 12 11 (156981.30 MHz) 13 13 - 12 12 (168406.80 MHz) 14 13 - 13 12 (169753.41 MHz) |
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| 1987 | C3S
|
Detection of intense unidentified lines in TMC-1
N. Kaifu, H. Suzuki, M. Ohishi, T. Miyaji, S. Ishikawa, T. Kasuga, and M. Morimoto, ApJ 317:L111-L114 (1987) Laboratory Detection of a New Carbon-Chain Molecule C3S and Its Astronomical Identification S. Yamamoto, S. Saito, K. Kawaguchi, N. Kaifu, and H. Suzuki, ApJ 317:L119-L121 (1987) Sulfur in IRC +10216 J. Cernicharo, C. Kahane, M. Guélin, and H. Hein, A&A 181:L9-L12 (1987) |
TMC-1 4-3 (23122.985 MHz) 7-6 (40465.017 MHz) 8-7 (46245.594 MHz) IRC +10216 13-12 (75148.09 MHz) 15-14 (86708.72 MHz) 16-15 (92488.78 MHz) 17-16 (98268.43 MHz) 18-17 (104048.37 MHz) 19-18 (109828.42 MHz) 23-22 (132945.75 MHz) 24-23 (138725.29 MHz) 25-24 (144504.88 MHz) 27-26 (156062.70 MHz) 29-28 (167619.63 MHz) |
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| 1987 | (CH3)2CO
|
Acetone in Interstellar Space
F. Combes, M. Gerin, A. Wooten, G. Wlodarczak, F. Clausset, and P. I. Encrenaz, A&A 180:L13-L16 (1987) Confirmation of Interstellar Acetone L. E. Snyder, F. J. Lovas, D. M. Mehnringer, N. Y. Miao, Y.-J. Kuan. J. M. Hollis, and P. R. Jewell, ApJ 578:245-255 (2002) |
Sgr B2 J=8-7 quadruplet (82.9 GHz) J=11-10 quadruplet (112.4 GHz) 13 additional features |
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| 1987 | NaCl
|
Metals in IRC +10216 - Detection of NaCl, AlCl, and KCl, and Tentative Detection of AlF
J. Cernicharo and M. Guélin, A&A 183:L10-L12 (1987) |
IRC +10216 7-6 (91169.7 MHz) 8-7 (104189.8 MHz) 10-9 (130223.4 MHz) 11-10 (143237.0 MHz) 12-11 (156248.6 MHz) 13-12 (169258.3 MHz) |
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| 1987 | AlCl
|
Metals in IRC +10216 - Detection of NaCl, AlCl, and KCl, and Tentative Detection of AlF
J. Cernicharo and M. Guélin, A&A 183:L10-L12 (1987) |
IRC +10216 6-5 (87457.9 MHz) 7-6 (101032.4 MHz) 10-9 (145744.2 MHz) 11-10 (160311.9 MHz) |
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| 1987 | KCl
|
Metals in IRC +10216 - Detection of NaCl, AlCl, and KCl, and Tentative Detection of AlF
J. Cernicharo and M. Guélin, A&A 183:L10-L12 (1987) |
IRC +10216 13-12 (99928.5 MHz) 14-13 (107611.3 MHz) 17-16 (130650.2 MHz) 19-18 (146002.1 MHz) 20-19 (153678.7 MHz) 21-20 (161349.4 MHz) |
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| 1987 | AlF
|
Metals in IRC +10216 - Detection of NaCl, AlCl, and KCl, and Tentative Detection of AlF
J. Cernicharo and M. Guélin, A&A 1832:L10-L12 (1987) Exotic Fluoride Molecules in IRC +10216: Confirmation of AlF and Searches for MgF and CaF L. M. Ziurys, A. J. Apponi, and T. G. Phillips. ApJ 433:729-732 (1994) |
IRC +10216 3-2 (98926.6 MHz) 4-3 (131898.0 MHz) 5-4 (164867.7 MHz) 7-6 (230793.89 MHz) 8-7 (263749.35 MHz) 10-9 (329641.64 MHz) |
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| 1987 | c-C3H
|
Laboratory and Astronomical Detection of the Cyclic C3H Radical
S. Yamamoto, S. Saito, M. Ohishi, H. Suzuki, S.-I. Ishikawa, N. Kaifu, and A. Murakami, ApJ 322:L55-L58 (1987) |
TMC-1 221 - 111 (91.5 GHz) (including 4 fine and hyperfine components) |
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| 1987
NGC253 |
PN
|
Detection of Interstellar PN - The First Identified Phosphorus Compound in the Interstellar Medium
B. E. Turner and J. Bally, ApJ 321:L75-L79 (1987) Detection of Interstellar PN - The first Phosphorus-Bearing Species Observed in Molecular Clouds L. M. Ziurys, ApJ 321:L81-L85 (1987) |
Orion KL, W51M, Sgr B2 2-1 (93979.78 MHz) 3-2 (140967.75 MHz) 5-4 (234935.69 MHz) 6-5 (281914.13 MHz) |
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| 1988 | CH3NC
|
Tentative Detection of CH3NC towards Sgr B2
J. Cernicharo, C. Kahane, M. Guélin, and J. Gomez-Gonzalez, A&A 189:L1-L2 (1988) The IRAM-30 m line survey of the Horsehead PDR. III. High abundance of complex (iso-)nitrile molecules in UV-illuminated gas P. Gratier, J. Pety, V. Guzmán, M. Gerin, J. R. Goicoechea, E. Roueff, and A. Faure, A&A 557:A101 (2013) |
Sgr B2 J = 4 3 (80??? MHZ)J = 5 4 (100525 MHZ)J = 7 6 (140734 MHZ)
Horsehead PDR 3 of 5 lines of K-ladder of J = 5 4 (100.508 GHZ) |
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| 1988 | C3
|
Detection of C3 in the Circumstellar Shell of IRC +10216
K. H. Hinkle, J. J. Keady, and P. F. Bernath, Science 241:1319-1322 (1988) Far-infrared Detection of C3 in Sagittarius B2 and IRC +10216 J. Cernicharo, J. R. Goicoechea, and E. Caux, ApJ 534:L199-L202 (2000) |
IRC +10216 matches to 15 lines of the P and Q branches, 2025-2056 cm-1 |
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| 1988
PKS1830-211 |
CH2CN
|
Identification of the Interstellar Cyanomethyl Radical (CH2CN) in the Molecular Clouds
TMC-1 and Sagittarius B2
W. M. Irvine, P. Friberg, Å. Hjalmarson, S. Ishikawa, N. Kaifu, K. Kawaguchi, S. C. Madden, H. E. Matthews, M. Ohishi, S. Saito, H. Suzuki, P. Thaddeus, B. E. Turner, S. Yamamoto, and L. M. Ziurys, ApJ 334:L107-L111 (1988) |
TMC-1, Sgr B2 numerous radio lines |
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| 1988 | HC2CHO
|
A New Interstellar Polyatomic Molecule: Detection of Propynal in the Cold Cloud TMC-1
W. M. Irvine, R. D. Brown, D. M. Craig, P. Friberg, P. D. Godfrey, N. Kaifu, H. E. Matthews, M. Ohishi, H. Suzuki, and H. Takeo, ApJ 335:L89-L93 (1988) |
TMC-1 202-101 (18650.3 MHz) 212-111 (18325.5 MHz) 211-110 (18978.8 MHz) 404-303 (37290.1 MHz) |
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| 1989 | C5
|
Detection of C5 in the circumstellar shell of IRC +10216
P. F. Bernath, K. H. Hinkle, and J. J. Keady, Science 244:562-564 (1989) Presumed Detection of C5 Molecule in the Interstellar Medium J. Krełowski, R. Hakalla, and W. Szajna. ApJ 939:113 (2022) |
IRC +10216 matches to 16 lines of the P and R branches, 2164-2174 cm-1 HD 166734, HD 80077 A1Πu-X1Σg+ bands near 4975 and 5109 Å | ||||||||||||||||||
| 1989 | SiC
|
Astonomical and Laboratory Detection of the SiC Radical
J. Cernicharo, C. A. Gottlieb, M. Guélin, P. Thaddeus, P. and J. M. Vrtilek, ApJ 341:L25-L28 (1989) |
IRC +10216 J′-J=2-1, Ω=1,Λ=e (80988 MHz) J′-J=2-1, Ω=1,Λ=f (81062 MHz) J′-J=2-1, Ω=0,Λ=e (83842 MHz) J′-J=4-3, Ω=2,Λ=e,f (157494 MHz) J′-J=4-3, Ω=1,Λ=e (161977 MHz) J′-J=4-3, Ω=1,Λ=f (162121 MHz) J′-J=6-5, Ω=2,Λ=e,f (236288 MHz) |
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| 1989 | SiC4
|
Detection of a New Circumstellar Carbon Chain Molecule, C4Si
M. Ohishi, N. Kaifu, K. Kawaguchi, A. Murakami, S. Saito, S. Yamamoto, S.-I. Ishikawa, Y. Fujita, S. Shiratori, and W. M. Irvine, ApJ 345:L83-L86 (1989) |
IRC +10216 J′-J′′=12-11 (36810.1 MHz) J′-J′′=13-12 (39877.6 MHz) J′-J′′=14-13 (42945.0 MHz) J′-J′′=15-14 (46012.4 MHz) J′-J′′=16-15 (49079.8 MHz) J′-J′′=28-27 (85886.0 MHz) |
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| 1989 | CO2
|
The Discovery of Interstellar Carbon Dioxide
L. B. D'Hendecourt and M. Jourdain de Muizon, A&A 223:L5-L8 (1989) |
AFGL 961, 989, & 8903 ice feature at 658 cm-1 |
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| 1989 | CH2
|
A search for methylene in the Orion nebula
J. M. Hollis, P. R. Jewell, P. R. and F. J. Lovas, ApJ 346:794-798 (1989) Confirmation of Interstellar Methylene J. M. Hollis, P. R. Jewell, P. R. and F. J. Lovas, ApJ 438:259-264 (1995) |
Orion-KL, W51 M various rotational lines |
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| 1990 | CP
|
Free CP in IRC +10216
M. Guélin, J. Cernicharo, G. Paubert, and B. E. Turner, A&A 230:L9-L11 (1990) |
IRC +10216 10 radio lines |
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| 1991 | H2CCC
|
Astronomical Detection of H2CCC
J. Cernicharo, C. A. Gottlieb, M Guélin, T. C. Killian, G. Paubert, P. Thaddeus, and J. M. Vrtilek, ApJ 368:L39-L41 (1991) |
TMC-1 101 - 000 (20792.59 MHz) 515 - 414 (102992.38 MHz) 514 - 413 (104915.58 MHz) 716 - 615 (146876.06 MHz) |
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| 1991 | H2CCCC
|
Astronomical Detection of H2CCCC
J. Cernicharo, C. A. Gottlieb, M Guélin, T. C. Killian, P. Thaddeus, and J. M. Vrtilek, ApJ 368:L43-L45 (1991) |
IRC +10216 90,9 - 80,8 (80383.96 MHz) 101,10 - 91,9 (88940.21 MHz) 111,11 - 101,10 (97833.60 MHz) 110,11 - 100,10 (98245.01 MHz) 111,10 - 101,9 (98655.07 MHz) 121,11 - 110,11 (107622.92 MHz) 151,15 - 141,14 (133405.23 MHz) 151,14 - 141,13 (134525.20 MHz) |
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| 1991 | HCCN
|
Astronomical Detection of the HCCN Radical - Toward a New Family of Carbon-Chain Molecules?
M. Guélin and J. Cernicharo, A&A 244:L21-L24 (1991) |
IRC +10216 4,5 - 3,4 (87767.5 Mhz) 4,4 - 3,3 (87889.4 Mhz) 4,3 - 3,2 (88214.0 Mhz) 5,6 - 4,5 (109771.8 Mhz) 5,5 - 4,4 (109862.5 Mhz) 5,4 - 4,3 (110044.2 Mhz) 6,7 - 5,6 (131761.8 Mhz) 6,6 - 5,5 (131832.5 Mhz) 7,8 - 6,7 (153745.6 Mhz) 7,6 - 6,5 (153894.1 Mhz) |
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| 1991
Arp 220 |
NH
|
Discovery of Interstellar NH
D. M. Meyer and K. C. Roth, ApJ 376:L49-L52 (1991) |
ζ Persei & HD 27778 A 3 - X 3
(0,0) R1(0)(3358 Å) |
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| 1991 | CH4
|
Discovery of Interstellar Methane - Observations of Gaseous and Solid CH4 Absorption Toward
Young Stars in Molecular Clouds
J. H. Lacy, J. S. Carr, N. J. Evans II, F. Baas, J. M. Achtermann, and J. F. Arens, ApJ 376:556-560 (1991) |
NGC 7538, IRS 9, etc. IR features near 7.6 μm |
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| 1991 | C2O
|
Detection of a New Carbon-chain Molecule, CCO
M. Ohishi, H. Suzuki, S.-I. Ishikawa, C. Yamada, H. Kanamori, W. M. Irvine, R. D. Brown, P. D. Godfrey, and N. Kaifu. ApJ 380:L39-L42 (1991) |
TMC-1 12 01 (22258.181 MHz)23 12 (45826.706 MHz) |
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| 1992 | HCCNC
|
Detection of Isocyanoacetylene HCCNC in TMC-1
K. Kawaguchi, M. Ohishi, S.-I. Ishikawa, and N. Kaifu, ApJ 386:L51-L53 (1992) |
TMC-1 4 - 3 (39742.572 MHz) 5 - 4 (49677.90 MHz) 9 - 8 (89419.41 MHz) |
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| 1992 | SiN
|
Detection of SiN in IRC +10216
B. E. Turner, ApJ 388:L35-L38 (1992) |
IRC +10216 numerous rotational lines |
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| 1992 | HNCCC
|
Detection of HNCCC in TMC-1
K. Kawaguchi, S. Takano, M. Ohishi, S.-I. Ishikawa, K. Miyazawa, N. Kaifu, K. Yamashita, S. Yamamoto, S. Saito, Y. Ohshima, and Y. Endo, ApJ 396:L49-L51 (1992). |
TMC-1 J = 3-2 (28009.975 MHz) J = 4-3 (37346.556 MHz) J = 5-4 (46683.086 MHz) |
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| 1992
PKS1830-211 |
SO+
|
Detection of Interstellar SO+ - A Diagnostic of Dissociative Shock Chemistry
B. E. Turner, ApJ 396:L107-L110 (1992) |
IC 443G 2 1/2 J=5/2-3/2, e (115804.405 MHz)2 1/2 J=5/2-3/2, f (116179.947 MHz)2 1/2 J=9/2-7/2, e (208590.021 MHz)2 1/2 J=9/2-7/2, f (208965.425 MHz) |
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| 1993
PKS1830-211 |
NH2
|
Detection of the Interstellar NH2 Radical
E. F. van Dishoeck, D. J. Jansen, P. Schilke, and T. G. Phillips, ApJ 416:L83-L86 (1993) |
Sgr B2(N) and Sgr B2(M) J' - J" = 3/2-3/2 (7 lines at 462.4 GHz) J' - J" = 1/2-1/2 (4 lines at 469.4 GHz) J' - J" = 3/2-1/2 (5 lines at 461.4 GHz) |
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| 1993
M82 |
CO+
|
Detection of the Carbon Monoxide Ion (CO+) in the Interstellar Medium and a Planetary Nebula
W. B. Latter, C. K. Walker, and P. R. Maloney, ApJ 419:L97-L100 (1993) |
M17SW (2,1)(3/2-1/2) (235789.641 MHz) (2,1)(5/2-3/2) (236062.553 MHz) (3,2)(5/2-3/2) (353741.262 MHz) |
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| 1994 | HC3NH+
|
Detection of a New Molecular Ion HC3NH+ in TMC-1
K. Kawaguchi, Y. Kasai, S.-I. Ishikawa, M. Ohishi, N. Kaifu, and T. Amano, ApJ 420:L95-L97(1994) |
TMC-1 4-3 (34631.914 MHz) 5-4 (43289.809 MHz) |
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| 1994
PKS1830-211 |
H2CN
|
Detection of a New Interstellar Molecule, H2CN
M. Ohishi, D. McGonagle, W. M. Irvine, and S. Yamamoto, ApJ 427:L51-L54 (1994) |
TMC-1, Sgr B2 10 radio lines |
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| 1994 | NaCN
|
Detection of Sodium Cyanide (NaCN) in IRC 10216
B. E. Turner, T. C. Steimle, and L. Meerts, ApJ 426:L97-L100 (1994) |
IRC +10216 505-404 (77836.7 MHz) 607-505 (93206.1 MHz) 707-606 (108472.0 MHz) 909-808 (138652.1 MHz) |
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| 1994 | N2O
|
Detection of Interstellar N2O: A New Molecule Containing an N-O Bond
L. M. Ziurys, A. J. Apponi, J. M. Hollis, and L. E. Snyder, ApJ 436:L181-L184 (1994) |
Sgr B2 3-2 (75369.2 MHz) 4-3 (100491.7 MHz) 5-4 (125613.7 MHz) 6-5 (150735.0 MHz) |
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| 1995 | MgCN
|
Detection of MgCN in IRC +10216: A New Metal-Bearing Free Radical
L. M. Ziurys, A. J. Apponi, M. Guélin, and J. Cernicharo, ApJ 445:L47-L50 (1995) |
IRC +10216 11-10 (21/2-19/2) (112063.4 MHz) 11-10 (23/2-21/2) (112078.4 MHz) 10-9 (19/2-17/2) (101877.6 MHz) 10-9 (21/2-19/2) (101892.6 MHz) 9-8 (17/2-15/2) (91690.9 MHz) 9-8 (19/2-17/2) (91970.9 MHz) |
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| 1996 | C8H
|
Discovery of the C8H Radical
J. Cernicharo and M. Guélin, A&A 309:L27-L30 (1996) |
IRC +10216 10 rotational lines |
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| 1996 | H3+
|
Detection of H3+ in Interstellar Space
T. R. Geballe and T. Oka, Nature 384:334-335 (1996) |
GL2136, W33A R(1,0) ortho (2725.898 cm-1) R(1,1)+ para (2726.219 cm-1) |
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| 1996 | H2COH+
|
Detection of a New Interstellar Molecular Ion, H2COH+ (Protonated Formaldehyde)
M. Ohishi, S. Ishikawa, T. Amano, H. Oka, W. M. Irvine, J. E. Dickens, L. M. Ziurys, and A. J. Apponi, ApJ 471:L61-L64 (1996) |
Sgr B2, Orion KL, W51 30,3-21,2 (31914.6 MHz) 11,1-20,2 (36300.0 MHz) 40,4-31,3 (102065.8 MHz) 21,1-11,0 (132219.7 MHz) 11,0-10,1 (168401.1 MHz) 50,5-41,4 (173766.9 MHz) |
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| 1997 | C7H
|
Detection of a New Linear Carbon Chain Radical: C7H
M. Guélin, J. Cernicharo, M. J. Travers, M. C. McCarthy, C. A. Gottlieb, P. Thaddeus, M. Ohishi, S. Saito, and S. Yamamoto, A&A 317:L1-L4 (1997) |
IRC +10216 1/2, 47.5-46.5 (83072.9 MHz) 3/2, 47.5-46.5 (83261.0 MHz) 1/2, 48.5-47.5 (84819.5 MHz) 3/2, 48.5-47.5 (85013.0 MHz) 1/2, 49.5-48.5 (86571.5 MHz) [ &Omega, J J' ] |
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| 1997 | CH3COOH
|
Detection and Confirmation of Interstellar Acetic Acid
D. M. Mehringer, L. E. Snyder, Y. Miao, and F. Lovas, ApJ 480:L71-L74 (1997) |
Sgr B2, Orion KL, W51 8*,8-7*,7 E (90203.35 MHz) 8*,8-7*,7 A (90246.26 MHz) 9*,9-8*,8 E (100855.02 MHz) 9*,9-8*,8 A (100897.83 MHz) |
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| 1997 | H2C6
|
First Astronomical Detection of the Cumulene Carbon Chain Molecule H2C6 in TMC-1
W. D. Langer, T. Velusamy, T. B. H. Kuiper, R. Peng, M. C. McCarthy, M. J. Travers, A. Kovács, C. A. Gottlieb, and P. Thaddeus, ApJ 480:L63-L66 (1997) |
TMC-1 JK,K' = 71,7 61,6 (18802 MHz)JK,K' = 81,8 71,7 (21488 MHz) |
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1997
Mrk 231 |
HF
|
Discovery of Interstellar Hydrogen Fluoride
D. A. Neufeld, J. Zmuidzinas, P. Schilke, and T. G. Phillips, ApJ 488:L141-L144 (1997) |
Sgr B2 J=2-1 (121.6973 μm) |
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| 1997 | c-C2H4O
|
Detection of Interstellar Ethylene Oxide (c-C2H4O)
J. E. Dickens, W. M. Irvine, M. Ohishi, M. Ikeda, S. Ishikawa, A. Nummelin, and A. Hjalmarson, ApJ 489:753-757 (1997) |
Sgr B2N 11,1-00,0 (39581.60 MHz) 42,2-41,3 (41579.43 MHz) 55,0-55,4 (47556.90 MHz) 63,4-52,3 (219512.82 MHz) 80,8-71,7 (235106.08 MHz) 55,0-44,1 (249623.57 MHz) 81,7-72,6 (254231.79 MHz) |
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1998
B0218+357 |
LiH
|
Search for LiH in the ISM towards B0218+357
F. Combes and T. Wiklind, A&A 334:L81-L84 (1998) The Search for Extragalactic Lithium Hydride D. N. Friedel, A. Kemball, and B. D. Fields, ApJ 738, 37 (2011) Detection questioned: Search for Interstellar LiH in the Milky Way D. A. Neufeld, P. F. Goldsmith, C. Comito, and A. Schmiedeke, ApJ 837, 52 (2017) |
B0218+357 J 0 1 (444 GHz) |
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| 1998 | C5N
|
Astronomical Detection of the Cyanobutadiynyl Radical C5N
M. Guélin, N. Neininger, and J. Cernicharo, A&A 355:L1-L4 (1998) |
TMC-1 9,9.5-8,8.5 (25249.938 MHz) 9,8.5-8,7.5 (25260.649 MHz) (N,J N',J') |
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| 1999 | SiC3
|
Astronomical Detection of Rhomboidal SIC3
A. J. Apponi, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus, ApJ 516:L103-L106 (1999) |
IRC +10216 70,7-60,6 (80662.33 MHz) 80,8-70,7 (91844.83 MHz) 82,7-72,6 (93125.61 MHz) 86,3-76,2 (93421.59 MHz) 86,2-76,1 (93421.59 MHz) 84,5-74,4 (93848.07 MHz) 84,4-74,3 (93848.94 MHz) 82,6-72,5 (94634.66 MHz) 90,9-80,8 (102916.13 MHz) |
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| 2000 | CH3 methyl radical
|
Detection of Interstellar CH3
H. Feuchtgruber, F. P. Helmich, E. F. van Dishoeck, and C. M. Wright, ApJ 535:L111-L114 (2000) |
Sgr A* IR spectral match to Q branch at 16.5 µm and R(0) line at 16.0 µm |
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| 2000 | CH2OHCHO
|
Interstellar Glycolaldehyde: The First Sugar
J. M. Hollis, F. J. Lovas, and P. R. Jewell, ApJ 540:L107-L110 (2000) |
Sgr B2(N) 707-616 (71542.7 MHz) 817-726 (73347.3 MHz) 808-717 (82471.2 MHz) 909-818 (93053.2 MHz) 100,10-919 (103392.0 MHz) 1019-928 (103667.4 MHz) |
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| 2000 | SiCN
|
Astronomical Detection of the Free Radical SiCN
M. Guélin, S. Muller, J. Cernicharo, A. J. Apponi, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus, A&A 369:L9-L12 (2000) |
IRC +10216/CW Leo 7.5-6.5 (83.0 GHz) 8.5-7.5 (94.0 GHz) 9.5-8.5 (105.1 GHz) |
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| 2001
LMC |
C4H2 diacetylene
|
Infrared Space Observatory's Discovery of C4H2, C6H2,
and Benzene in CRL 618
J. Cernicharo, A. M. Heras, A. G. G. M. Tielens, J. R. Pardo, F. Herpin, M. Guélin, and L. B. F. M. Waters, ApJ 546:L123-L126 (2001) |
CRL 6188 (15.9 µm)6 + 8 (8 µm) |
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| 2001
LMC | C6H2 triacetylene
|
Infrared Space Observatory's Discovery of C4H2, C6H2,
and Benzene in CRL 618
J. Cernicharo, A. M. Heras, A. G. G. M. Tielens, J. R. Pardo, F. Herpin, M. Guélin, and L. B. F. M. Waters, ApJ 546:L123-L126 (2001) |
CRL 61811 (16.1 µm)8 + 11 (8.11 µm) |
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| 2001
LMC | C6H6 benzene |
Infrared Space Observatory's Discovery of C4H2, C6H2,
and Benzene in CRL 618
J. Cernicharo, A. M. Heras, A. G. G. M. Tielens, J. R. Pardo, F. Herpin, M. Guélin, and L. B. F. M. Waters, ApJ 546:L123-L126 (2001) |
CRL 6184 (14.8374 µm) |
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| 2001 | c-C2H5N aziridine
|
Searches for New Interstellar Molecules, including a Tentative Detection of Aziridine and a Possible
Detection of Propenal
J. E. Dickens, W. M. Irvine, A. Nummelin, H. Møllendal, S. Saito, S. Thorwirth, and Å Hjalmarson. Spectrochimica Acta A 57:643-660 (2001). Searches for interstellar molecules of potential prebiotic importances Y.-J. Kuan, S. B. Charnley, H.-C. Huang, Z. Kisiel, P. Ehrenfreund, W.-L. Tseng, and C.-H. Yan. Adv Space Res 33:31-39 (2004). (Note: The CDMS does not list this detection as even tentative; Barnum et al. did not detect aziridine toward TMC-1 in 2022.) |
G327.3, G10.47, etc. 211-101 (86312.7 MHz) 550-441 (226223.4 MHz) Orion KL, W51 e1/e2 "a few lines" | ||||||||||||||||||
| 2001 | CH2CHOH vinyl alcohol
|
Microwave Detection of Interstellar Vinyl Alcohol, CH2CHOH
B. E. Turner and A. J. Apponi, ApJ 561:L207-L210 (2001) |
Sgr B2N, Anti form 111-000 (71830.39 MHz) 212-101 (89757.11 MHz) 313-202 (106949.49 MHz) 414-303 (139315.20 MHz) 515-404 (154460.95 MHz) Sgr B2N, Syn form 212-101 (86557.60 MHz) 313-202 (103706.01 MHz) |
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| 2002 | AlNC
|
More Metal Cyanide Species: Detection of AlNC (X 1Σ+) toward
IRC +10216
L. M. Ziurys, C. Savage, J. L. Highberger, A. J. Apponi, M. Guélin, and J.Cernicharo, ApJ 564:L45-L48 (2002) |
IRC +10216 11-10 (131642.2 MHz) 12-11 (143605.4 MHz) 13-12 (155567.4 MHz) 18-17 (215357.4 MHz) 21-20 (251213.0 MHz) |
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| 2002 | FeO
|
Detection of FeO toward Sagittarius B2
C. M. Walmsley, R. Bachiller, G. Pineau des Forêts, and P. Schilke, ApJ 566:L109-L112 (2002) |
Sgr B2(N) J=5-4 (153135.3 MHz) |
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| 2002 | HOCH2CH2OH
|
Interstellar Antifreeze: Ethylene Glycol
J. M. Hollis, F. J. Lovas, P. R. Jewell, and L. H. Coudert, ApJ 571:L59-L62 (2002) |
Sgr B2(N-LMH) 845(ν=0)-744(ν=1) (75151.4 MHz) 836(ν=0)-735(ν=1) (75186.1 MHz) 844(ν=0)-743(ν=1) (75186.1 MHz) 707(ν=1)-606(ν=0) (75299.9 MHz) 919(ν=1)-818(ν=0) (92975.9 MHz) |
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| 2003 | NH2CH2COOH | 30 Jun 2014 – Glycine has been moved to the non-detections page. | |||||||||||||||||||
| 2004 | C14H10
|
Discovery of Blue Luminescence in the Red Rectangle: Possible Fluorescence from Neutral Polycyclic
Aromatic Hydrocarbon Molecules?
U. P. Vijh, A. N. Witt, and J. D. Gordon, ApJ 606:L65-L68 (2004) This detection has been disputed: Crystalline Si Nanoparticles as Carriers of the Blue Luminescence in the Red Rectangle Nebula M. H. Nayfeh, S. R. Habbal, and S. Rao, ApJ 621:L121-L124 (2005) |
Red Rectangle misc bands |
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| 2004 | N2
|
The Interstellar N2 Abundance Towards HD 124314 from Far-Ultraviolet Observations
D. C. Knauth, B.-G. Andersson, S. R. McCandliss, and H. W. Moos, Nature 409:636-638 (2004) |
HD 124314 c'4 1 +u
X 1+g
(958.6 Å)
c3 1 +u
X 1+g
(960.3 Å)
|
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| 2004 | CH2CHCHO
|
Green Bank Telescope Detection of New Interstellar Aldehydes: Propenal and Propanal
J. M. Hollis, P. R. Jewell, F. J. Lovas, A. Remijan, and H. Møllendal, ApJ 610:L21-L24 (2004) |
Sgr B2(N) 211-110 (18221.164 MHz) 313-212 (26079.449 MHz) |
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| 2004 | CH3CH2CHO
|
Green Bank Telescope Detection of New Interstellar Aldehydes: Propenal and Propanal
J. M. Hollis, P. R. Jewell, F. J. Lovas, A. Remijan, and H. Møllendal, ApJ 610:L21-L24 (2004) |
Sgr B2(N) 111-000 (21268.611 MHz) 202-101 (20875.059 MHz) 212-111 (19690.426 MHz) 211-110 (22279.346 MHz) 303-212 (21451.572 MHz) 413-404 (19182.445 MHz) |
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| 2004 | SiNC
|
Detection of the SiNC Radical in IRC +10216
M. Guélin, S. Muller, J. Cernicharo, M. C. McCarthy, and P. Thaddeus, A&A 426:L49-L52 (2004) |
IRC +10216 J = 6.5 5.5 (e) (? MHz)J = 7.5 6.5 (f) (? MHz)J = 8.5 7.5 (f) (? MHz)J = 10.5 9.5 (e) (? MHz)J = 10.5 9.5 (f) (? MHz) |
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| 2004 | HC4N
|
Detection of the Linear Radical HC4N in IRC +10216
J. Cernicharo, M. Guélin, and J. R. Pardo, ApJ 615:L145-L148 (2004) | IRC +10216 12 radio lines |
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| 2004 | c-C2H3N
2H-azirine |
Searches for interstellar molecules of potential prebiotic importances
Y.-J. Kuan, S. B. Charnley, H.-C. Huang, Z. Kisiel, P. Ehrenfreund, W.-L. Tseng, and C.-H. Yan. Adv Space Res 33:31-39 (2004). (Note: The CDMS does not list this detection as even tentative; Barnum et al. did not detect 2H-azirine toward TMC-1 in 2022.) |
Sgr B2(N-LMH), Orion KL "a few lines" | ||||||||||||||||||
| 2005 | CO(CH2OH)2 |
1,3-Dihydroxyacetone in Sagittarius B2(N-LMH): The First Interstellar Ketose
S. L. Widicus Weaver and G. A. Blake, ApJ 624:L33-L36 (2005) This detection has been disputed: Investigating the Limits of Chemical Complexity in Sagittarius B2(N): A Rigorous Attempt to Confirm 1,3-Dihydroxyacetone A. J. Apponi, D. T. Halfen, L. M. Ziurys, J. M. Hollis, Anthony J. Remijan, and F. J. Lovas. ApJ 643:L29-L32 (2006) |
Sgr B2(N-LMH) 9 submillimeter lines |
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| 2006 | CH2CCHCN
|
Hyperfine Structure Identification of Interstellar Cyanoallene toward TMC-1
F. J. Lovas, A. J. Remijan, J. M. Hollis, P. R. Jewell, and L. E. Snyder, ApJ 637:L37-L40 (2006) Detection of Interstellar Cyanoallene and its Implications for Astrochemistry Y.-N. Chin, R. I. Kaiser, C. Lemme, and C. Henkel, AIP Conf. Proc. 855:149-153 (2006) | TMC-1 Lovas et al.: (some with hyperfine structure) 414-313 (20.2 GHz) 404-303 (20.6 GHz) 515-414 (25.2 GHz) 505-404 (25.7 GHz) Chin et al.: 404-303 (20.6 GHz) 505-404 (25.8 GHz) 606-505 (30.9 GHz) 707-606 (36.1 GHz) |
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| 2006 | c-H2C3O
|
Cyclopropenone (c-H2C3O): A New Interstellar Ring Molecule
J. M. Hollis, Anthony J. Remijan, P. R. Jewell, and F. J. Lovas. ApJ 642:933-939 (2006) | Sgr B2(N-LMH) 8 rotational lines |
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| 2006 | CH3CONH2
|
Detection of Acetamide (CH3CONH2): The Largest Interstellar Molecule with a
Peptide Bond
J. M. Hollis, F. J. Lovas, Anthony J. Remijan, P. R. Jewell, V. V. Ilyushin, and I. Kleiner. ApJ 643:L25-L28 (2006) | Sgr B2(N) 4 A-species lines 4 E-species lines |
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| 2006 | CH3C6H
|
Methyltriacetylene (CH3C6H) toward TMC-1: The Largest Detected Symmetric Top
A. J. Remijan, J. M. Hollis, L. E. Snyder, P. R. Jewell, and F. J. Lovas. ApJ 643:L37-L40 (2006) |
TMC-1 10 rotational lines |
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| 2006 | CH2CNH
|
Detection of Ketenimine (CH2CNH) in Sagittarius B2(N) Hot Cores
F. J. Lovas, J. M. Hollis, A. J. Remijan, and P. R. Jewell. ApJ 645:L137-L140 (2006) |
Sgr B2(N) 716-808 (41.5 GHz) 817-909 (23.2 GHz) 918-100,10 (4.9 GHz) |
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| 2006
PKS1830-211 |
CF+
|
Discovery of Interstellar CF+
D. A. Neufeld, P. Schilke, K. M. Menten, M. G. Wolfire, J. H. Black, F. Schuller, H. S. P. Müller, S. Thorwirth, R. Güsten, and S. Philipp. A&A 454:L37-L40 (2006). |
Orion Bar J=1-0 (102.6 GHz) J=2-1 (205.2 GHz) J=3-2 (307.7 GHz) |
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| 2006 | CH3C5N
|
Confirmation of Interstellar Methylcyanodiacetylene (CH3C5N)
L. E. Snyder, J. M. Hollis, P. R. Jewell, F. J. Lovas, and A. Remijan. ApJ 647:412-417 (2006). |
TMC-1 J',K - J'',K 12,1-11,1 (18672.8 MHz) 12,0-11,0 (18672.9 MHz) 13,1-12,1 (20228.8 MHz) 13,0-12,0 (20228.9 MHz) 14,1-13,1 (21784.9 MHz) 14,0-13,0 (21785.0 MHz) 15,1-14,1 (23340.9 MHz) 15,0-14,0 (23341.1 MHz) 16,1-15,1 (24897.0 MHz) 16,0-15,0 (24897.1 MHz) |
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| 2006 | C6H–
|
Laboratory and Astronomical Identification of the Negative Molecular Ion C6H–
M. C. McCarthy, C. A. Gottlieb, H. Gupta, and P. Thaddeus. ApJ 652:L141-L144 (2006) |
IRC +10216, TMC-1 "17 rotational lines between 8 and 187 GHz" |
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| 2007 | C4H–
|
Astronomical Detection of C4H–, the Second Interstellar Anion
J. Cernicharo, M. Guélin, M. Agúndez, K. Kawaguchi, M. McCarthy, and P. Thaddeus. A&A 467:L37-L40 (2007) |
IRC +10216 J=9-8 (83787 MHz) J=11-10 (102406 MHz) J=12-11 (111714 MHz) J=14-13 (130333 MHz) J=15-14 (139641 MHz) |
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| 2007 | HCP
|
Discovery of Phosphaethyne (HCP) in Space: Phosphorus Chemistry in Circumstellar Envelopes
M. Agúndez, J. Cernicharo, and M. Guélin. ApJ 662:L91-L94 (2007) |
IRC +10216 J' J"=2-1 (79903.3 MHz)J' J"=4-3 (159802.6 MHz)J' J"=5-4 (199749.4 MHz)J' J"=6-5 (239693.7 MHz)J' J"=7-6 (279635.0 MHz) |
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| 2007 | C8H–
|
Detection of the Carbon Chain Negative Ion C8H– in TMC-1
S. Brünken, H. Gupta, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus, ApJ 664:L43-L46 (2007) Detection of C8H– and Comparison with C8H toward IRC +10216 A. J. Remijan, J. M. Hollis, F. J. Lovas, M. A. Cordiner, T. J. Millar, A. J. Markwick-Kemper, and P. R. Jewell, ApJ 664:L47-L50 (2007) |
TMC-1 J'-J = 11-10 (12833.460 MHz) J'-J = 12-11 (14000.134 MHz) J'-J = 13-12 (15166.806 MHz) J'-J = 16-15 (18666.814 MHz) IRC +10216 J = 22-21 (25666.783 MHz) J = 35-34 (40833.075 MHz) J = 36-35 (41999.690 MHz) J = 37-36 (43166.302 MHz) J = 38-37 (44332.910 MHz) |
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| 2007 | CH2CHCH3
|
Discovery of Interstellar Propylene (CH2CHCH3): Missing Links in Interstellar
Gas-Phase Chemistry
N. Marcelino, J. Cernicharo, M. Agúndez, E. Roueff, M. Gerin, J. Martín-Pintado, R. Mauersberger, and C. Thum. ApJ 665:L127-L130 (2007) |
TMC-1 A lines 515-414 (84151.670 MHz) 505-404 (86651.566 MHz) 524-423 (87134.576 MHz) 523-423 (87677.584 MHz) 514-413 (89998.180 MHz) 616-515 (100911.394 MHz) 606-505 (103689.979 MHz) E lines 505-404 (86650.873 MHz) 524-423 (87137.941 MHz) 523-422 (87673.663 MHz) 514-413 (89997.232 MHz) 616-515 (100911.141 MHz) 606-505 (103689.117 MHz) |
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| 2007 | PO
|
Identification of Phosphorus Monoxide (X2Πr) in VY Canis Majoris:
Detection of the First P-O Bond in Space
E. D. Tenenbaum, N. J. Woolf, and L. M. Ziurys. ApJ 666:L29-L32 (2007) |
VY Canis Majoris J = 5.5 4.5e: F = 6 5 (239949.0 MHz)e: F = 5 4 (239958.1 MHz)f: F = 6 5 (240141.1 MHz)f: F = 5 4 (240152.5 MHz)J = 6.5 5.5e: F = 7 6 (283586.8 MHz)e: F = 6 5 (283593.2 MHz)f: F = 7 6 (283777.6 MHz)f: F = 6 5 (283785.4 MHz) |
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| 2008 | CNCHO
|
Detection of Interstellar Cyanoformaldehyde (CNCHO)
A. J. Remijan, J. M. Hollis, F. J. Lovas, W. D. Stork, P. R. Jewell, and D. S. Meier. ApJ 675:L85-L88 (2008) |
Sgr B2(N) J′(K-,K+)-J″(K-,K+) transitions 5(1,5)-6(0,6) (2078.1 MHz) 7(0,7)-6(1,6) (8574.1 MHz) 8(0,8)-7(1,7) (19368.0 MHz) 9(0,9)-8(1,8) (30294.2 MHz) 10(0,10)-9(1,9) (41342.2 MHz) |
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| 2008 | CCP
|
Detection of the CCP Radical (X2Πr) in IRC +10216: A New
Interstellar Phosphorus-containing Species
D. T. Halfen, D. J. Clouthier, and L. M. Ziurys. ApJ 677:L101-L104 (2008) |
IRC +10216 five rotational lines, include one lamba-doublet J = 8.5 7.5 (~108 GHz)J = 10.5 9.5 (~134 GHz)J = 11.5 10.5 (~146 GHz)J = 12.5 11.5 (~159 GHz) |
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| 2008 | C3N–
|
Laboratory and Astronomical Detection of the Negative Molecular Ion C3N–
P. Thaddeus, C. A. Gottlieb, H. Gupta, S. Brünken, M. C. McCarthy, M. Agúndez, M. Guélin, and J. Cernicharo. ApJ 677:1132-1139 (2008) |
IRC +10216 J'-J = 10-9 (97029.5 MHz) J'-J = 11-10 (106731.5 MHz) J'-J = 14-13 (135837.9 MHz) J'-J = 15-14 (145538.6 MHz) |
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| 2008 | NH2CH2CN aminoacetonitrile
|
Detection of amino acetonitrile in Sgr B2(N)
A. Belloche, K. M. Menten, C. Comito, H. S. P. Müller, P. Schilke, J. Ott, S. Thorwirth, and C. Hieret. A&A 482:179-196 (2008) |
Sgr B2(N) many lines |
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| 2008 | PH3
|
Tentative detection of phosphine in IRC +10216
M. Agúndez, J. Cernicharo, J. R. Pardo, M. Guélin, and T. G. Phillips. A&A 485:L33-L36 (2008) A Search for Phosphine in Circumstellar Envelopes: PH3 in IRC +10216 and CRL 2688? E. D. Tenenbaum and L. M. Ziurys. ApJ 680:L121-L124 (2008) Confirmation of circumstellar phosphine A. Agúndez, J. Cernicharo, L. Decin, P. Encrenaz, and D. Teyssier. ApJ 790:L27 (2014) |
IRC +10216, CRL 2688 JK=10-00 (266.944 GHz) JK=20-11 (533.8 GHz) |
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| 2008 | C5N–
|
Detection of C5N– and Vibrationally Excited C6H in IRC +10216
J. Cernicharo, M. Guélin, M. Agúndez, M. C. McCarthy, and P. Thaddeus, ApJ 688:L83-L86 (2008) |
IRC +10216 B1389 series |
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| 2009 | HCNO
|
Discovery of Fulminic Acid, HCNO, in Dark Clouds
N. Marcelino, J. Cernicharo, B. Tercero, and E. Roueff, ApJ 690:L27-L30 (2009) |
B1, L1544, L193, L1527 J=4-3 (91.751 GHz) J=5-4 (? MHz) |
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| 2009 | AlO
|
Millimeter Detection of AlO (X2Σ+): Metal Oxide Chemistry in the Envelope
of VY Canis Majoris
E. D. Tenenbaum and L. M. Ziurys, ApJ 693:L59-L63 (2009) |
VY Canis Major N=7 6 (267.937 GHz)N=6 5 (229.670 GHz)N=4 3 (153.124 GHz) |
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| 2009 | HOCN cyanic acid |
Laboratory Detection of HOCN and Tentative Identification in Sgr B2
S. Brünken, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus, ApJ 697:880-885 (2009) Interstellar HOCN in the Galactic center region S. Brünken, A. Belloche, S. Martín, L. Verheyen, and K. M. Menten, A&A 516:A109 (2010) |
Sgr B2 Ka=0 transitions: 40,4-30,3 (83.9 GHz) 50,5-40,4 (104.9 GHz) 60,6-50,5 (125.8 GHz) 70,7-60,6 (146.8 GHz) |
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| 2009 | C2H5OCHO
|
Increased Complexity in Interstellar Chemistry: Detection and Chemical Modeling of
Ethyl Formate and n-Propyl Cyanide in Sagittarius B2(N)
A. Belloche, R. T. Garrod, H. S. P. Müller, K. M. Menten, C. Comito, and P. Schilke, A&A 499:215-232 (2009). |
Sgr B2(N) many lines |
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| 2009 | n-C3H7CN
|
Increased Complexity in Interstellar Chemistry: Detection and Chemical Modeling of
Ethyl Formate and n-Propyl Cyanide in Sagittarius B2(N)
A. Belloche, R. T. Garrod, H. S. P. Müller, K. M. Menten, C. Comito, and P. Schilke, A&A 499:215-232 (2009). |
Sgr B2(N) many lines |
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| 2009 | HSCN thiocyanic acid |
Detection of a New Interstellar Molecule: Thiocyanic Acid HSCN
D. T. Halfen, L. M. Ziurys, S. Brünken, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus, ApJ 702:L124-L127 (2009). |
Sgr B2(N) 8 lines |
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| 2010 | AlOH
|
Exotic Metal Molecules in Oxygen-rich Envelopes: Detection of AlOH (X1Σ+)
in VY Canis Majoris
E. D. Tenenbaum and L. M. Ziurys, ApJ 712:L93-L97(2010). |
VY Canis Major J = 9 → 8 (283253.9 MHz) J = 7 → 6 (220330.9 MHz) J = 5 → 4 (157391.0 MHz) |
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| 2010 | CN–
|
Astronomical Identification of CN–, the Smallest Observed Molecular Anion
M. Agúndez, J. Cernicharo, M. Guélin, C. Kahane, E. Roueff, J. Klos, F. J. Aoiz, F. Lique, N. Marcelino, J. R. Goicoechea, M. González García, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus. A&A 517:L2 (2010). |
IRC +10216 J = 1-0 (112264.8 MHz) (blended) J = 2-1 (224525.4 MHz) J = 3-2 (336777.0 MHz) |
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| 2010
M82 |
H2O+
|
Detection of interstellar oxidaniumyl: Abundant H2O+ towards the star-forming
regions DR21, Sgr B2, and NGC6334
V. Ossenkopf and 102 co-authors. A&A 518:Llll (2010). |
DR21, Sgr B2(M), NGC6334 (details to follow) |
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2010
NGC4418 |
OH+
|
First interstellar detection of OH+
F. Wyrowski, K. M. Menten, R. Güsten and A. Belloche. A&A 518:A26 (2010). |
Sgr B2(M) N =1-0, J = 1-0 (909.1588 GHz) |
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| 2010
PKS1830-211 |
H2Cl+
|
Herschel/HIFI discovery of interstellar chloronium (H2Cl+)
D. C. Lis and 91 co-authors. A&A 521:L9 (2010). |
NGC 6334I, Sgr B2(S) (details to follow) |
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2010
SMC |
C60
|
Detection of C60 and C70 in a Young Planetary Nebula
J. Cami, J. Bernard-Salas, E. Peeters, and S. E. Malek, Science 329:1180-1192 (2010). C60 in Reflection Nebulae K. Sellgren, M. W. Werner, J. G. Ingalls, J. D. T. Smith, T. M. Carleton, and C. Joblin, ApJ 722:L54-L57 (2010) [see also Werner et al. 2004b and Sellgren et al. 2007 cited therein]. |
Tc 1 IR bands at 8.5, 17.4, and 18.9 μm NGC 7023 IR bands at 7.0, 17.4, and 18.9 μm |
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| 2010 | C70 |
Detection of C60 and C70 in a Young Planetary Nebula
J. Cami, J. Bernard-Salas, E. Peeters, and S. E. Malek, Science 329:1180-1192 (2010). |
Tc 1 IR bands at 12.6, 14.9, 15.6, and 21.9 μm |
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| 2010 | C14H10+ |
A Search for Interstellar Anthracene towards the Perseus Anomalous Microwave Emission Region
S. Iglesias-Groth, A. Manchado, R. Rebolo, J. I. González Hernández, D. A. Garcí- Hernández, and D. L. Lambert, MNRAS 407:2157-2165 (2010) | Cernis 52 7088.8 Å |
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| 2010 | KCN
|
Identification of KCN in IRC+10216: Evidence for Selective Cyanide Chemistry
R. L. Pulliam, C. Savage, M. Agúndez, J. Cernicharo, M. Guélin, and L. M. Ziurys. ApJ 727:L181 (2010). |
IRC +10216 14 transitions |
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| 2011
PKS1830-211 |
SH+
|
Submillimeter absorption from SH+, a new widespread interstellar radical,
13CH+ and HCl
K. M. Menten, F. Wyrowski, A. Belloche, R. Güsten, L. Dedes, and H. S. P. Müller. A&A 525:A77 (2011). |
Sgr B2 quartet of hyperfine structure lines near 683 GHz from 11-01 |
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| 2011 | FeCN
|
Detection of FeCN (X 4&Deltai) in IRC +10216: A New Interstellar Molecule
L. N. Zack, D. T. Halfen, and L. M. Ziurys. ApJ 733:L36 (2011). |
IRC +10216 J = 10.5 → 9.5 (84232.4 MHz) J = 12.5 → 11.5 (100275.0 MHz) J = 13.5 → 12.5 (108296.0 MHz) J = 17.5 → 16.5 (140397.0 MHz) (additional blended or contaminated lines observed) |
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| 2011 | HOOH
|
Detection of interstellar hydrogen peroxide
P. Bergman, B. Parise, R. Liseau, B. Larsson, H. Olofsson, K. M. Menten and R. Güsten A&A 531, L8 (2011). |
ρ Oph A 30,3 - 21,1 (219167 MHz) 61,5 - 50,5 (251915 MHz) 40,4 - 31,2 (268961 MHz) 50,5 - 41,3 (318223 MHz) |
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| 2011 | O2 |
Herschel Measurements of Molecular Oxygen in Orion
P. F. Goldsmith and 34 co-authors, ApJ 737:96 (2011) see also: Molecular Oxygen in the ρ Ophiuchi Cloud B. Larsson and 57 co-authors, A&A 466:999-1003 (2007) |
Orion 3,3-1,2 (487.249 GHz) 5,4-3,4 (773.840 GHz) 7,6-5,6 (1120.715 GHz) ρ Oph NJ = 11-10 line at 118750.3 MHz |
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| 2012 | HO2
|
Detection of the hydroperoxyl radical HO2 toward ρ Ophiuchi A. Additional constraints
on the water chemical network
B. Parise, P. Bergman, and F. Du, A&A 541:L11 (2012) | ρ Oph A 5 lines (for 7 transitions) |
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| 2012 | HCl+
|
Herschel/HIFI Discovery of HCl+ in the Interstellar Medium
M. De Luca, H. Gupta, D. Neufeld, M. Gerin, D. Teyssier, B. J. Drouin, J. C. Pearson, D. C. Lis, R. Monje, T. G. Phillips, J. R. Goicoechea, B. Godard, E. Falgarone, A. Coutens, and T. A. Bell, ApJ 751:L37 (2012) | W31C & W49N 2Π3/2 J=5/2-3/2 (1444 GHz) with Λ doubling and hyperfine structure |
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| 2012 | SH
|
Discovery of interstellar mercapto radicals (SH) with the GREAT instrument on SOFIA
D. A. Neufeld, E. Falgarone, M. Gerin, B. Godard, E. Herbst, G. Pineau des Forêts, A. I. Vasyunin, R. Güsten, H. Wiesemeyer, and O. Ricken, A&A 542:L6 (2012) | W49N 2Π3/2 J=5/2-3/2 (1383 GHz) λ doublet |
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| 2012 | trans HCOOCH3 | (see methyl formate entry, 1975) | I'm still thinking about how to handle the situation this species raises. When is a conformer distinct enough to have its own entry? Given the energy differences and the barrier protecting the tran and cis isomers, this one probably is... | ||||||||||||||||||
| 2012 | HNCNH
|
Interstellar Carbodiimide (HNCNH): A New Astronomical Detection from the GBT PRIMOS Survey via Maser
Emission Features
B. A. McGuire, R. A. Loomis, C. M. Charness, J. F. Corby, G. A. Blake, J. M. Hollis, F. J. Lovas, P. R. Jewell, and A. J. Remijan, ApJ 758:L33 (2012) |
Sgr B2(N) A1s18(0,18)-A1d17(1,17) (4344.009 MHz) A1s19(0,19)-A1d18(1,18) (25083.265 MHz) A1s20(0,20)-A1d19(1,19) (45822.046 MHz) A2s18(0,18)-A2d17(1,17) (4802.956 MHz) A2s19(0,19)-A2d18(1,18) (25541.620 MHz) |
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| 2012 | CH3O
|
Discovery of the Methoxy Radical, CH3O, toward B1: Dust Grain and Gas-phase Chemistry in
Cold Dark Clouds
J. Cernicharo, N. Marcelino, E. Roueff, M. Gerin, A. Jiménez-Escobar, and G. M. Muñoz Caro, ApJ 759:L43 (2012) |
B1-b hyperfine components of N=1-0, K=0, J=3/2-1/2 transition at 3 mm |
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| 2012
PKS1830-211 |
l-C3H+
|
The IRAM-30 m line survey of the Horsehead PDR. II. First detection of the l-C3H+
hydrocarbon cation
J. Pety, P. Gratier, V. Guzmán, E. Roueff, M. Gerin, J. R. Goicoechea, S. Bardeau, A. Sievers, F. Le Petit, J. Le Bourlot, A. Belloche, and D. Talbi, A&A 548:A68 (2012) Detection disputed: Spectroscopic Constants and Vibrational Frequencies for l-C3H+ and Isotopologues from Highly Accurate Quartic Force Fields: The Detection of l-C3H+ in the Horsehead Nebula PDR Questioned X. Huang, R. C. Fortenberry, and T. J. Lee, ApJ 768:L25 (2013) Detection confirmed: Laboratory Rotational Spectrum of l-C3H+ and Confirmation of its Astronomical Detection S. Brünken, L. Kluge, A. Stoffels, O. Asvany, and S. Schlemmer, ApJ 783:L4 (2014) |
Horsehead PDR, Sgr B2(N) J = 2 → 3 (67468.9 MHz) J = 4 → 3 (89957.6 MHz) J = 5 → 4 (112445.6 MHz) J = 6 → 5 (134932.7 MHz) J = 7 → 6 (157418.7 MHz) J = 9 → 8 (202386.6 MHz) J = 10 → 9 (224868.4 MHz) J = 11 → 10 (247348.3 MHz) J = 12 → 11 (269825.9 MHz) |
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| 2013 | C60+ |
Interstellar C60+
O. Berné, G. Mulas, and C. Joblin, A&A 550:L4 (2013) See also: On the identification of the C60+ interstellar features G. A. Galazutidinov, K. Krełowski, F. A. Musaev, P. Ehrenfruend, and B. H. Foing, MNRAS 317:750-758 (2000). Detection of two interstellar absorption bands coincident with spectral features of C60+ B. H. Foing and P. A. Ehrenfreund, Nature 369:296-298 (1994). |
NGC 7023 IR bands at 6.43, 7.13, 8.10, and 10.53 μm |
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| 2013 | CH3CHNH
|
The Detection of Interstellar Ethanimine (CH3CHNH) from Observations taken during the GBT PRIMOS
Survey
R. A. Loomis, D. P. Zaleski, A. L. Steber, J. L. Neill, M. T. Muckle, B. J. Harris, J. M. Hollis, P. R. Jewell, V. Lattanzi, F. J. Lovas, O. Martinez, Jr., M. C. McCarthy, A. J. Remijan, and B. H. Pate, ApJL 765:L10 (2013) |
Sgr B2(N) 20 transitions |
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| 2013 | E-HNCHCN E-cyanomethanimine
|
Detection of E-cyanomethanimine towards Sagittarius B2(N) in the Green Bank Telescope PRIMOS Survey
D. P. Zaleski, N. A. Seifert, A. L. Steber, M. T. Muckle, R. A. Loomis, J. F. Corby, O. Martinez, Jr., K. N. Crabtree, P. R. Jewell, J. M. Hollis, F. J. Lovas, D. Vasquez, J. Nyiramahirwe, N. Sciortino, K. Johnson, M. C. McCarthy, A. J. Remijan, and B. H. Pate, ApJ 765:L9 (2013) |
Sgr B2(N) 9 transitions |
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| 2013 | TiO titanium monoxide |
Pure rotational spectra of TiO and TiO2 in VY Canis Majoris
T. Kamiński, C. A. Gottlieb, K. M. Menten, N. A. Patel, K. H. Young, S. Brünken, H. S. P. Müller, M. C. McCarthy, J. M. Winters, and L. Decin, A&A 551:A113 (2013) |
VY Canis Majori 10 transitions |
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| 2013 | TiO2 titanium dioxide |
Pure rotational spectra of TiO and TiO2 in VY Canis Majoris
T. Kamiński, C. A. Gottlieb, K. M. Menten, N. A. Patel, K. H. Young, S. Brünken, H. S. P. Müller, M. C. McCarthy, J. M. Winters, and L. Decin, A&A 551:A113 (2013) |
VY Canis Majori many transitions |
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| 2013 | CH3COOCH3 methyl acetate |
Discovery of Methyl Acetate and Gauche Ethyl Formate in Orion
B. Tercero, I. Kleiner, J. Cernicharo, H. V. L. Nguyen, A. López, and G. M. Muñoz Caro. ApJ 770:L13 (2013) |
Orion many transitions |
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| 2013 | NH3D+ ammonium ion |
Detection of the Ammonium Ion in Space
J. Cernicharo, B. Tercero, A. Fuente, J. L. Domenech, M. Cueto, E. Carrasco, V. J. Herrero, I. Tanarro, N. Marcelino, E. Roeff, M. Gerin, and J. Pearson. ApJ 771:L10 (2013) Improved Determinination of the 10-00 Rotational Frequency of NH3D+ from the High-Resolution Spectrum of the ν4 Infrared Band J. L. Doménech, M. Cueto, V. J. Herrero, I. Tanarro, B. Tercero, A. Fuente, and J. Cernicharo. ApJ 771:L11 (2013) |
Orion-IRc2, B1-bS 10-00(262816.73 MHz) |
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| 2013 | C6H5OH phenol
|
The millimeter wave tunneling-rotational spectrum of phenol
L. Kolesniková, A. M. Daly, J. L. Alonso, B. Tercero, and J. Cernicharo. J Mol Spectrosc 289:13 (2013). |
Orion KL various lines |
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| 2013 | HMgNC hydromagnesium isocyanide |
Laboratory and Astronomical Discovery of Hydromagnesium Isocyanide
C. Cabezas, J. Cernicharo, J. L. Alonso, M. Agúndez, S. Mata, M. Guélin, and I. Peña. ApJ 775:133 (2013) |
IRC +10216 J = 8 – 7 (87697.5 MHz) J = 10 – 9 (109616.7 MHz) J = 12 – 11 (131533.9 MHz) J = 13 – 12 (142490.9 MHz) |
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| 2013 | H2NCO+ protonated HNCO |
Laboratory Measurements and Tentative Astronomical Identification of H2NCO+
H. Gupta, C. A. Gottlieb, V. Lattanzi, J. C. Pearson, and M. C. McCarthy. ApJ 778:L1 (2013) |
Sgr B2(N) 000 – 101 (20227.576 MHz) 110 – 211 (40783.344 MHz) |
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| 2013
PKS1830-211 |
ArH+ protonated Ar |
Detection of a Noble Gas Molecular Ion, 36ArH+, in the Crab Nebula
M. J. Barlow, B. M. Swinyard, P. J. Owen, J. Cernicharo, H. L. Gomez, R. J. Ivison, O. Krause, T. L. Lim, M. Matsuura, S. Miller, G. Olofsson, and E. T. Polehampton. Science 342:1343-1345 (2013) |
Crab Nebula J = 1-0 (617.525 GHz) J = 2-1 (1234.603 GHz) |
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| 2014 | CH3CH2SH ethyl mercaptan |
Spectroscopic Characterization and Detection of Ethyl Mercaptan in Orion
L. Kolesniková, B. Tercero, J. Cernicharo, J. L. Alonso, A. M. Daly, B. P. Gordon, and S. T. Shipman. ApJ 784:L7 (2014) |
Orion KL 77 lines |
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| 2014 | i-C3H7CN isopropyl cyanide
|
Detection of a branched alkyl molecule in the interstellar medium: iso-propyl cyanide
A. Belloche, R. T. Garrod, H. S. P. Müller, K. M. Menten. Science 345:1584-1587 (2014) |
Sgr B2(N) ~50 lines |
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| 2014 | C5S
|
New molecules in IRC +10216: confirmation of C5S and tentative identification of MgCCH, NCCP,
and SiH3CN
M. Agúndez, J. Cernicharo and M. Guélin. A&A 570:A45 (2014) C3S and C5S in IRC +10216 M. B. Bell, L. W. Avery, and P. A. Feldman. ApJ 417:L37 (1993) |
IRC+10216 J = 44-43 (81193.4 MHz) J = 45-44 (83037.8 MHz) J = 46-45 (84883.5 MHz) |
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| 2014 | MgCCH magnesium monoacetylide
|
New molecules in IRC +10216: confirmation of C5S and tentative identification of MgCCH, NCCP,
and SiH3CN
M. Agúndez, J. Cernicharo and M. Guélin. A&A 570:A45 (2014) Discovery of two new magnesium-bearing species in IRC+10216: MgC3N and MgC4H J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, C. Bermúdez, L. Velilla-Prieto, F. Tercero, J. A. López-Pérez, J. D. Gallego, J. P. Fonfría, G. Quintana-Lacaci, M. Guélin, and Y. Endo. A&A 630:L2 (2019). |
IRC+10216 N = 917/2-815/2 (89361.0 Mhz) N = 919/2-817/2 (89778.0 Mhz) N = 1019/2-917/2 (99288.5 Mhz) N = 1021/2-919/2 (99305.6 Mhz) 2019: additional confirming lines |
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| 2014 | NCCP cyanophosphaethyne
|
New molecules in IRC +10216: confirmation of C5S and tentative identification of MgCCH, NCCP,
and SiH3CN
M. Agúndez, J. Cernicharo and M. Guélin. A&A 570:A45 (2014) |
IRC+10216 J = 15-14 (81131.9 MHz) J = 16-15 (86539.5 MHz) J = 18-17 (97355.7 MHz) |
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| 2014 | SiH3CN silyl cyanide
|
New molecules in IRC +10216: confirmation of C5S and tentative identification of MgCCH, NCCP,
and SiH3CN
M. Agúndez, J. Cernicharo and M. Guélin. A&A 570:A45 (2014) Discovery of methyl silane and confirmation of silyl cyanide in IRC +10216 J. Cernicharo, M. Agúndez, L. Velilla Prieto, M. Guélin, J. R. Pardo, C. Kahane, C. Marka, C. Kramer, S. Navarro, G. Quintana-Lacaci, J. P. Fonfría, N. Marcelino, B. Tercero, E. Moreno, S. Massalkhi, M. Santander-García, M. C. McCarthy, C. A. Gottlieb, and J. L. Alonso. A&A 606:L5 (2017). |
IRC+10216 JK = 90-80 (89509.5 MHz) JK = 100-90 (99452.5 MHz) JK = 110-100 (109397.0 MHz) |
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| 2014 | CCN cyanomethylidyne
|
Detection of CCN (X2Πr) in IRC+10216: Constraining Carbon-chain Chemistry
J. K. Anderson and L. M. Ziurys. ApJ 795:L1 (2014) |
IRC+10216 J = 4.5-3.5 (e) (106339.4 MHz) J = 4.5-3.5 (f) (106376.4 MHz) J = 6.5-5.5 (e) (153617.9 MHz) J = 6.5-5.5 (f) (153644.0 MHz) J = 9.5-8.5 (e) (224544.9 MHz) J = 9.5-8.5 (f) (224549.4 MHz) |
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| 2015 | HCCO ketenyl
|
Discovery of interstellar ketenyl (HCCO), a surprisingly abundant radical
M. Agúndez, J. Cernicharo, and M. Guélin. A&A 577:L5 (2015) |
Lupus-1A, L483 N = 4-3 transition J' F' - J" F" fine/hyperfine 9/2 5 - 7/2 4 (86642.357 MHz) 9/2 4 - 7/2 3 (86643.863 MHz) 7/2 4 - 5/2 3 (86655.825 MHz) 7/2 3 - 5/2 2 (86657.477 MHz) |
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| 2015 | SiCSi disilicon carbide
|
Discovery of SiCSi in IRC+10216: A Missing Link between Gas and Dust Carriers of Si-C Bonds
J. Cernicharo, M. C. McCarthy, C. A. Gottlieb, M. Agúndez, L. Velilla Prieto, J. H. Baraban, P. B. Changala, M. Guélin, C. Kahane, M. A. Martin- Drumel, N. A. Patel, N. J. Reilly, J. F. Stanton, G. Quintana-Lacaci, S. Thorwirth, and K. H. Young. ApJ 806:L3 (2015) |
IRC+10216 112 lines |
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| 2015 | C60+ buckyball cation |
Laboratory confirmation of C60+ as the carrier of two diffuse interstellar bands
E. K. Campbell, M. Holz, D. Gerlich and J. P. Maier. Nature 523:322-323 (2015) |
diffuse interstellar bands Absorptions at 9632.6 and 9577.4 Å |
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| 2015 | NCCNH+ protonated cyanogen
|
Probing non-polar interstellar molecules through their protonated form: Detection of protonated cyanogen
(NCCNH+)
M. Agúndez, J. Cernicharo, P. de Vicente, N. Marcelino, E. Roueff, A. Fuente, M. Gerin, M. Guélin, C. Albo, A. Barcia, L. Barbas, R. Bolaño, F. Colomer, M. C. Diez, J. D. Gallego, J. Gómez-González, I. López-Fernández, J. A. López-Fernández2, J. A. López-Pérez, I. Malo, J. M. Serna, and F. Tercero. A&A 579:L10 (2015) |
TMC-1, L483 J = 5-4 (44379.850 MHz) J = 10-9 (88758.108 MHz) |
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| 2015 | CrO chromium monoxide |
Post-outburst spectra of a stellar-merger remnant of V1309 Scorpii: from a twin of V838 Monocerotis to
a clone of V4332 Sagittarii
T. Kamiński, E. Mason, R. Tylenda, and M. R. Schmidt. A&A 580:A34 (2015). |
V1309 Scorpii (0,0) band of the A5Σ-X5Π system |
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| 2015 | CH3NCO methyl isocyanate
|
Interstellar Detection of Methyl Isocyanate CH3NCO in Sgr B2(N): A Link from Molecular Clouds to Comets
D. T. Halfen, V. V. Ilyushin, and L. M. Ziurys. ApJ 812:L5 (2015) A rigorous detection of interstellar CH3NCO: An important missing species in astrochemical networks J. Cernicharo, Z. Kisiel, B. Tercero, L. Kolesniková, I. R. Medvedev, A. López, S. Fortman, M. Winnewisser, F. C. de Lucia, J. L. Alonso, and J.-C. Guillemin. A&A 587:L4 (2016) |
Sgr B2(N) 17 lines (Ka=0, Ka=1 only), both A & E internal rotation, from J = 8 → 7 J = 9 → 10 J = 10 → 11 J = 11 → 12 J = 12 → 13 Orion 399 lines |
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| 2015 | t-C2H5OCH3 trans ethyl methyl ether
|
Searching for trans ethyl methyl ether in Orion KL
B. Tercero, J. Cernicharo, A. López, N. Brouillet, L. Kolesniková, R. A. Motiyenko, L. Margulès, J. L. Alonso, and J.-C. Guillemin. A&A 582:L1 (2015). |
Orion KL 46 unblended lines |
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| 2016 | CH3CHCH2O propylene oxide
|
Discovery of the interstellar chiral molecule propylene oxide (CH3CHCH2O)
B. A. McGuire, P. B. Carroll, R. A. Loomis, I. A. Finneran, P. R. Jewell, A. J. Remijan, and G. A. Blake. Science 352:1449-1552 (2016) |
Sgr B2(N) 11,0-10,1 (12.1 GHz) 21,1-20,2 (12.8 GHz) 31,2-30,3 (14.0 GHz) |
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| 2017 | CH3NHCHO N-methylformamide |
Rotational spectroscopy, tentative interstellar detection, and chemical modeling of N-methylformamide
A. Belloche, A. A. Meshcheryakov, R. T. Garrod, V. V. Ilyushin, E. A. Alekseev, R. A. Motiyenko, L. Margulès, H. S. P. Müller, and K. M. Menten. A&A 601:A49 (2017). |
Sgr B2(N2) 5 lines |
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| 2017 | HC5O
|
Detection of Interstellar HC5O in TMC-1 with the Green Bank Telescope
B. A. McGuire, A. M. Burkhardt, C. N. Shingledecker, S. V. Kalenskii, E. Herbst, A. J. Remijan, and M. C. McCarthy. ApJL 843:L28 (2017). |
TMC-1 For J=17/2→15/2: F=9→8(e) (21941.848 MHz) F=8→7(e) (21941.977 MHz) F=9→8(f) (21945.232 MHz) F=8→7(f) (21945.370 MHz) |
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| 2017 | CH3Cl chloromethane
|
Protostellar and cometary detections of organohalogens
E. C. Fayolle, K. I. Öberg, J. K. Jørgensen, K. Altwegg, H. Calcutt, H. S. P. Müller, M. Rubin, M. H. D. van der Wiel, P. Bjerkeli, T. L. Bourke, A. Coutens, E. F. van Dishoeck, M. N. Drozdovskaya, R. T. Garrod, N. F. W. Ligterink, M. V. Persson, S. F. Wampfler & the ROSINA team. Nature Astron 1:702-708 (2017). |
IRAS 16293-2422 J'K-J"K=13K-12K, K=0-4 35Cl (345 GHz) 37Cl (340 GHz) |
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| 2017 | CH3SiH3 methyl silane
|
Discovery of methyl silane and confirmation of silyl cyanide in IRC +10216
J. Cernicharo, M. Agúndez, L. Velilla Prieto, M. Guélin, J. R. Pardo, C. Kahane, C. Marka, C. Kramer, S. Navarro, G. Quintana-Lacaci, J. P. Fonfría, N. Marcelino, B. Tercero, E. Moreno, S. Massalkhi, M. Santander-García, M. C. McCarthy, C. A. Gottlieb, and J. L. Alonso. A&A 606:L5 (2017). |
IRC +10216 10 lines, 80-350 GHz |
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| 2017 | HC7O 1-oxo-hepta-2,4,6-triynyl |
Deep K-band Observations of TMC-1 with the Green Bank Telescope: Detection of HC7O, Nondetection of
HC11N, and a Search for New Organic Molecules
M. A. Cordiner, S. B. Charnley, Z. Kisiel, B. A. McGuire, and Y.-J. Kuan. ApJ 850:194 (2017). Detection of Interstellar HC5O in TMC-1 with the Green Bank Telescope B. A. McGuire, A. M. Burkhardt, C. N. Shingledecker, S. V. Kalenskii, E. Herbst, A. J. Remijan, and M. C. McCarthy. ApJL 843:L28 (2017). |
TMC-1 8 transitions (including hyperfine structure) |
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| 2017 | CH3OCH2OH methoxymethanol
|
ALMA Detection of Interstellar Methoxymethanol (CH3OCH2OH)
B. A. McGuire, C. N. Shingledecker, E. R. Willis, A. M. Burkhardt, S. El-Abd, R. A. Motiyenko, C. L. Brogan, T. R. Hunter, L. Margulès, J.-C. Guillemin, R. T. Garrod, E. Herbst, and A. J. Remijan. ApJL 851:L46 (2017). |
NGC6334I(MM1 core) >24 unblended transitions |
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| 2017 | S2H
|
First Detection of Interstellar S2H
A. Fuente, J. R. Goicoechea, J. Pety, R. Le Gal, R. Martín-Doménech, P. Gratier, V. Guzmán, E. Roueff, J. C. Loison, G. M. Muñoz Caro, V. Wakelam, M. Gerin, P. Riviere-Marichalar, and T. Vidal. ApJL 851:L49 (2017). |
Horsehead nebula 8 lines around 94 and 110 GHz |
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| 2018 | c-C6H5CN benzonitrile
|
Detection of the aromatic molecule benzonitrile (c-C6H5CN) in the interstellar medium
B. A. McGuire, A. M. Burkhardt, S. Kalenskii, C. N. Shingledecker, A. J. Remijan, E. Herbst, and M. C. McCarthy. Science 359:202-205 (2018). |
TMC-1 9 transitions with hyperfine structure |
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| 2018 | NS+ nitrogen sulfide cation
|
Discovery of the Ubiquitous Cation NS+ in Space Confirmed by Laboratory Spectroscopy
J. Cernicharo, B. Lefloch, M. Agúndez, S. Bailleux, L. Margulès, E. Roueff, R. Bachiller, N. Marcelino, B. Tercero, C. Vastel, and E. Caux. ApJL 853:L22 (2018). |
TMC-1, B1b, L483, etc. J = 2 → 1 (100198.55 MHz) (with hyperfine structure) toward B1b: J = 3 → 2 (150295.611 MHz) J = 5 → 4 (250481.477 MHz) |
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| 2018 | HCS thioformyl radical
|
Detection of interstellar HCS and its metastable isomer HSC: new pieces in the puzzle of sulfur chemistry
M. Agúndez, N. Marcelino, J. Cernicharo and M. Tafafa. A&A 611:L1 (2018). |
L483 20,2-10,1 lines: J=5/2-3/2, F=3-2 (80553.516 MHz) J=5/2-3/2, F=2-1 (80565.596 MHz) J=3/2-1/2, F=2-1 (80596.409 MHz) J=3/2-1/2, F=1-0 (80611.995 MHz) J=3/2-1/2, F=1-1 (80618.820 MHz) |
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| 2018 | HSC isothioformyl radical
|
Detection of interstellar HCS and its metastable isomer HSC: new pieces in the puzzle of sulfur chemistry
M. Agúndez, N. Marcelino, J. Cernicharo and M. Tafafa. A&A 611:L1 (2018). |
L483 20,2-10,1 lines: J=5/2-3/2, F=2-1 (81192.825 MHz) J=3/2-1/2, F=2-1 (81194.975 MHz) J=5/2-3/2, F=3-2 (81199.988 MHz) |
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| 2018 | NCO isocyanate radical |
Discovery of the elusive radical NCO and confirmation of H2NCO+ in space
N. Marcelino, M. Agúndez, J. Cernicharo, E. Roueff, and M. Tafalla. A&A 612:L10 (2018) . |
L483 J=7/2-5/2: F=9/2-7/2 e (81404.300 MHz) F=9/2-7/2 f (81404.813 MHz) F=7/2-5/2 e (81413.120 MHz) F=7/2-5/2 f (81413.573 MHz) F=5/2-3/2 e (81418.385 MHz) F=5/2-3/2 f (81418.884 MHz) J=9/2-7/2: F=11/2-9/2 e (104665.278 MHz) F=11/2-9/2 f (104666.098 MHz) F=9/2-7/2 e (104670.139 MHz) F=9/2-7/2 f (104670.905 MHz) F=7/2-5/2 e (104673.371 MHz) F=7/2-5/2 f (104674.173 MHz) |
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| 2018 | CNCN isocyanogen
|
Discovery of Interstellar Isocyanogen (CNCN): Further Evidence that Dicyanopolyynes Are Abundant in Space
M. Agúndez, N. Marcelino, and J. Cernicharo. ApJL 861:K22 (2018). |
L483 (TMC-1?) J = 8-7 (82784.692 MHz) J = 9-8 (93132.326 MHz) J = 10-9 (103479.802 MHz) |
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| 2019 | Z-HNCHCN Z-cyanomethanimine
|
Abundant Z-cyanomethanimine in the interstellar medium: paving the way to the synthesis of adenine
V. M. Rivilla, J. Martín-Pintado, I. Jiménez-Serra, S. Zeng, S. Martín, J. Armijos-Abendaño, M. A Requena-Torres, R. Aladro, and D. Riquelme. MNRASL 483:L114-L119 (2019). |
G+0.693 6 transitions |
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| 2019 | HOCH2CN glycolonitrile
|
First detection of the pre-biotic molecule glycolonitrile (HOCH2CN) in the interstellar medium
S. Zeng, D. Quénard, I. Jiménez-Serra, J. Martín-Pintado, V. M. Rivilla, L. Testi, and R. Martín-Doménech. MNRASL 484:L43-L48 (2019). |
IRAS 16293-2422 B 15 unblended lines |
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| 2019 | trans-HONO nitrous acid
|
The ALMA-PILS survey: First detection of nitrous acid (HONO) in the interstellar medium
A. Coutens, N. F. W. Ligterink, J.-C. Loison, V. Wakelam, H. Calcutt, M. N. Drozdovskaya, J. K. Jørgensen, H. S. P. Müller, E. F. van Dishoeck, and S. F. Wampfler. A&A 623:L13 (2019). |
IRAS 16293-2422 B 12 lines |
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| 2019 | VO vanadium oxide |
The Unexpected Spectrum of the Innermost Ejecta of the Red Hypergiant VY CMa
R. M. Humphreys, L. M. Ziurys, J. J. Bernal, M. S. Gordon, L. A. Helton, K. Ishibashi, T. J. Jones, A. M. S. Richards, and W. Vlemmings. ApJ 874:L26 (2019). |
VY CMa extensive electronic transitions |
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| 2019 | HeH+ helium hydride ion |
Astrophysical detection of the helium hydride ion HeH+
R. Güsten, H. Wiesemeyer, D. Neufeld, K. M. Menten, U. U. Graf, K. Jacobs, B. Klein, O. Ricken, C. Risacher, and J. Stutzki. Nature 568:357-359 (2019). |
NGC 7027 J=1-0 (2010.183873 GHz) |
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| 2019 | CaNC calcium isocyanide |
Discovery of the first Ca-bearing molecule in space: CaNC
J. Cernicharo, L. Velilla-Prieto, M. Agúndez, J. R. Pardo, J. P. Fonfría, G. Quintana-Lacaci, C. Cabezas, C. Bermúdez, and M. Guélin. A&A 627:L4 (2019) |
IRC +10216 various rotational lines |
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| 2019 | (NH2)2CO urea |
Re-exploring Molecular Complexity with ALMA (ReMoCA): interstellar detection of urea
A. Belloche, R. T. Garrod, H. S. P. Müller, K. M. Menten, I. Medvedev, J. Thomas, and Z. Kisiel. A&A 628:A10 (2019) Observational Results of a Multi-telescope Campaign in Search of Interstellar Urea [(NH2)2CO] A. J. Remijan, L. E. Snyder, B. A. McGuire, H.-L. Kuo, L. W. Looney, D. N. Friedel, G. Y. Golubiatnikov, F. J. Lovas, V. V. Ilyushin, E. A. Alekseev, S. F. Dyubko, B. J. McCall, and J. M. Hollis. ApJ 783:77 (2014) |
Sgr B2(N) 9 lines in ground and first excited virbational state |
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| 2019 | MgC3N
magnesium monocyanoacetylide
|
Discovery of two new magnesium-bearing species in IRC+10216: MgC3N and MgC4H
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, C. Bermúdez, L. Velilla-Prieto, F. Tercero, J. A. López-Pérez, J. D. Gallego, J. P. Fonfría, G. Quintana-Lacaci, M. Guélin, and Y. Endo. A&A 630:L2 (2019). |
IRC +10216 doublet series, multiple lines |
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| 2019 | MgC4H
magnesium monobutadiynide
|
Discovery of two new magnesium-bearing species in IRC+10216: MgC3N and MgC4H
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, C. Bermúdez, L. Velilla-Prieto, F. Tercero, J. A. López-Pérez, J. D. Gallego, J. P. Fonfría, G. Quintana-Lacaci, M. Guélin, and Y. Endo. A&A 630:L2 (2019). |
IRC +10216 doublet series, multiple lines |
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| 2020 | NH2OH
hydroxylamine |
Prebiotic Precursors of the Primordial RNA World in Space: Detection of NH2OH
V. M. Rivilla, J. Martín-Pintado, I. Jiménez-Serra, S. Martín, L. F. Rodríguez-Almeida, M. A. Requena-Torres, F. Rico-Villas, S. Zeng, and C. Briones. ApJL 899:L28 (2020). |
G+0.693-0.027 several unblended or slightly blended transitions |
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| 2020 | CH3COCH2OH
hydroxyacetone |
Detection of hydroxyacetone in protostar IRAS 16293-2422 B
Y. Zhou, D.-H. Quan, X. Zhang, and S.-L. Qin. Res Astron Astrophys 20:125 (2020). |
IRAS 16293-2422 B 11 unblended transitions |
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| 2020 | Z-HNCHCCH
Z-propargylimine
|
Propargylimine in the laboratory and in space: millimetre-wave spectroscopy and its first detection in the ISM
L. Bizzocchi, D. Prudenzano, V. M. Rivilla, A. Pietropolli-Charmet, B. M. Giuliano, P. Caselli, J. Martín-Pintado, I. Jiménez-Serra, S. Martín, M. A. Requena-Torres, F. Rico-Villas, S. Zeng and J.-C. Guillemin. A&A 640:A98 (2020). |
G+0.693-0.027 18 lines from 72-112 GHz |
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| 2020 | HC4NC
isocyano- diacetylene
|
Detection of Interstellar HC4NC and an Investigation of Isocyanopolyyne Chemistry under TMC-1
Conditions
C. Xue, E. R. Willis, R. A. Loomis, K. L. K. Lee, A. M. Burkhardt, C. N. Shingledecker, S. B. Charnley, M. A. Cordiner, S. Kalenskii, M. C. McCarthy, E. Herbst, A. J. Remijan, and B. A. McGuire. ApJL 900:L9 (2020). Discovery of HC4NC in TMC-1: A study of the isomers of HC3N, HC5N, and HC7N J. Cernicharo, N. Marcelino, M. Agúndez, C. Bermúdez, C. Cabezas, B. Tercero, and J. R. Pardo. A&A 642:L8 (2020). |
TMC-1 J'-J", 3 hyperfine 8 → 7 (~22419 MHz) 9 → 8 (~25221 MHz) 10 → 9 (~28024 MHz) |
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| 2020 | HCCCH2CN
propargyl cyanide
|
Early Science from GOTHAM: Project Overview, Methods, and the Detection of Interstellar Propargyl Cyanide
(HCCCH2CN) in TMC-1
B. A. McGuire, A. M. Burkhardt, R. A. Loomis, C. N. Shingledecker, K. L. K. Lee, S. B. Charnley, M. A. Cordiner, E. Herbst, S. Kalenskii, E. Momjian, E. R. Willis, C. Xue, A. J. Remijan, and M. C. McCarthy. ApJL 900:L10 (2020). A study of C4H3N isomers in TMC-1: Line by line detection of HCCCH2CN N. Marcelino, B. Tercero, M. Agúndez, and J. Cernicharo. A&A 646:L9 (2021). |
TMC-1 41,3-31,2 (22593.9 MHz) 51,5-41,4 (26551.9 MHz) 50,5-40,4 (27314.2 MHz) 51,4-41,3 (28232.3 MHz) (with hyperfine splitting) confirming study: 27 a-type and b-type lines |
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| 2020 | HC3O+
protonated C3O |
Discovery of HC3O+ in space: The chemistry of O-bearing species in TMC-1
J. Cernicharo, N. Marcelino, M. Agúndez, Y. Endo, C. Cabezas, C. Bermúdez, B. Tercero, and P. de Vicente. A&A 642:L17 (2020). |
TMC-1 J = 4-3 (35684.590 MHz) J = 5-4 (44605.748 MHz) J = 10-9 (89209.744 MHz) J = 11-10 (98130.286 MHz) |
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| 2020 | HC5NH+
protonated cyanodiacetylene |
Tentative detection of HC5NH+ in TMC-1
N. Marcelino, M. Agúndez, B. Tercero, C. Cabezas, C. Bermúdez, J. D. Gallego, P. deVicente, and J. Cernicharo. A&A 643:L6 (2020). |
TMC-1 J = 13-12 (33690.975 MHz) J = 14-13 (36282.540 MHz) J = 15-14 (38874.102 MHz) J = 16-15 (41465.655 MHz) J = 17-16 (44057.202 MHz) J = 18-17 (46648.736 MHz) J = 19-18 (49240.242 MHz) |
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| 2021 | c-C5H5CN
1-cyano- cyclopentadiene
|
Interstellar detection of the highly polar five-membered ring cyanocyclopentadiene
M. C. McCarthy, K. L. K. Lee, R. A. Loomis, A. M. Burkhardt, C. N. Shingledecker, S. B. Charnley, M. A. Cordiner, E. Herbst, S. Kalenskii, E. R. Willis, C. Xue, A. J. Remijan, and B. A. McGuire. Nature Astron 5:176-180 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | HC11N
cyanopenta- acetylene
|
An investigation of spectral line stacking techniques and application to the detection of HC11N
R. A. Loomis, A. M. Burkhardt, C. N. Shingledecker, S. B. Charnley, M. A. Cordiner, E. Herbst, S. Kalenskii, K. L. K. Lee, E. R. Willis, C. Xue, A. J. Remijan, M. C. McCarthy, and B. A. McGuire. Nature Astron 5, 188-196 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | HC≡CCH=CHC≡N
trans-cyanovinyl- acetylene |
Discovery of Interstellar trans-cyanovinylacetylene (HC≡CCH=CHC≡N) and vinylcyanoacetylene
(H2C=CHC3N) in GOTHAM Observations of TMC-1
K. L. K. Lee, R. A. Loomis, A. M. Burkhardt, I. R. Cooke, C. Xue, M. A. Siebert, C. N. Shingledecker, A. Remijan, S. B. Charnley, M. C. McCarthy, and B. A. McGuire. ApJL 908:L11 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | H2C=CHC3N
vinylcyanoacetylene
|
Discovery of Interstellar trans-cyanovinylacetylene (HC≡CCH=CHC≡N) and vinylcyanoacetylene
(H2C=CHC3N) in GOTHAM Observations of TMC-1
K. L. K. Lee, R. A. Loomis, A. M. Burkhardt, I. R. Cooke, C. Xue, M. A. Siebert, C. N. Shingledecker, A. Remijan, S. B. Charnley, M. C. McCarthy, and B. A. McGuire. ApJL 908:L11 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | HC3S+
protonated C3S |
Space and laboratory discovery of HC3S+
J. Cernicharo, C. Cabezas, Y. Endo, N. Marcelino, M. Agúndez, B. Tercero, J. D. Gallego, and P. de Vicente. A&A 646:L3 (2021). |
TMC-1 4 Q-band lines | ||||||||||||||||||
| 2021 | CH3CO+
acetyl cation |
Discovery of the acetyl cation, CH3CO+, in space and in the laboratory
J. Cernicharo, C. Cabezas, S. Bailleux, L. Margulès, R. Motiyenko, L. Zou, Y. Endo, C. Bermúdez, M. Agúndez, N. Marcelino, B. Lefloch, B. Tercero, and P. de Vicente. A&A 646:L7 (2021). |
TMC-1, L483, L1527, L1544 various lines | ||||||||||||||||||
| 2021 | c-C5H5CN
2-cyano- cyclopentadiene |
Interstellar Detection of 2-cyanocyclopentadiene, C5H5CN, a Second Five-membered Ring
toward TMC-1
K. L. K. Lee, P. B. Changala, R. A. Loomis, A. M. Burkhardt, C. Xue, M. A. Cordiner, S. B. Charnley, M. C. McCarthy, and B. A. McGuire. ApJL 910:L2 (2021). |
TMC-1 4 transitions | ||||||||||||||||||
| 2021 | C10H7CN
1-cyanonaphthalene
|
Detection of two interstellar polycyclic aromatic hydrocarbons via spectral matched filtering
B. A. McGuire, R. A. Loomis, A. M. Burkhardt, K. L. K. Lee, C. N. Shingledecker, S. B. Charnley, I. R. Cooke, M. A. Cordiner, E. Herbst, S. Kalenskii, M. A. Siebert, E. R. Willis, C. Xue, A. J. Remijan, and M. C. McCarthy. Science 371:1265 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | C10H7CN
2-cyanonaphthalene |
Detection of two interstellar polycyclic aromatic hydrocarbons via spectral matched filtering
B. A. McGuire, R. A. Loomis, A. M. Burkhardt, K. L. K. Lee, C. N. Shingledecker, S. B. Charnley, I. R. Cooke, M. A. Cordiner, E. Herbst, S. Kalenskii, M. A. Siebert, E. R. Willis, C. Xue, A. J. Remijan, and M. C. McCarthy. Science 371:1265 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | CH2CHCCH
vinyl acetylene 
|
Discovery of CH2CHCCH and detection of HCCN, HC4N, CH3CH2CN, and,
tentatively, CH3CH2CCH in TMC-1
J. Cernicharo, M. Agúndez, C. Cabezas, N. Marcelino, B. Tercero, J. R. Pardo, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 647:L2 (2021). |
TMC-1 6 transitions | ||||||||||||||||||
| 2021 | CH3CH2CCH
1-butyne
|
Discovery of CH2CHCCH and detection of HCCN, HC4N, CH3CH2CN, and,
tentatively, CH3CH2CCH in TMC-1
J. Cernicharo, M. Agúndez, C. Cabezas, N. Marcelino, B. Tercero, J. R. Pardo, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 647:L2 (2021). CN and CCH derivatives of ethylene and ethane: Confirmation of the detection of CH3CH2CCH in TMC-1 J. Cernicharo, B. Tercero, M. Agúndez, C. Cabezas, R. Fuentetaja, N. Marcelino, and P. de Vicente. A&A 686:A139 (2024). |
TMC-1 2021: 5 transitions, missing 505-404 transition 2024: 9 transitions | ||||||||||||||||||
| 2021 | H2CCCHCCH
allenyl acetylene |
Discovery of allenyl acetylene, H2CCCHCCH, in TMC-1 - A study of the isomers of
C5H4
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, N. Marcelino, J. R. Pardo, F. Tercero, J. D. Gallego, J. A. López-Pérez, and P. deVicente. A&A 647:L3 (2021). |
TMC-1 12 transitions | ||||||||||||||||||
| 2021 | CH2CCH
propargyl radical |
Discovery of the propargyl radical (CH2CCH) in TMC-1: One of the most abundant radicals ever found
and a key species for cyclization to benzene in cold dark clouds
M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. D. Gallego, P. de Vicente, and J. Cernicharo. A&A 647:L10 (2021). |
TMC-1 6 hyperfine components of the 20,2-10,1 transition | ||||||||||||||||||
| 2021 | NCS
thiocyanato radical
|
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and
C4S and detection of C5S
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 648:L3 (2021). |
TMC-1 J=5/2-3/2 (w/hyperfine) | ||||||||||||||||||
| 2021 | HCCS
thioketenyl radical |
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and
C4S and detection of C5S
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 648:L3 (2021). |
TMC-1 J=7/2-5/2 | ||||||||||||||||||
| 2021 | H2CCS
thioketene
|
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and
C4S and detection of C5S
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 648:L3 (2021). |
TMC-1 6 transitions | ||||||||||||||||||
| 2021 | H2CCCS
thiopropadienone |
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and
C4S and detection of C5S
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 648:L3 (2021). |
TMC-1 7 transitions | ||||||||||||||||||
| 2021 | C4S
tetracarbon sulfide |
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and
C4S and detection of C5S
J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente. A&A 648:L3 (2021). |
TMC-1 19 transitions | ||||||||||||||||||
| 2021 | t-HC(O)SH
trans-thioformic acid
|
Thiols in the Interstellar Medium: First Detection of HC(O)SH and Confirmation of C2H5S
L. F. Rodríguez-Almeida, I. Jiménez-Serra, V. M. Rivilla, J. Martín-Pintado, S. Zeng, B. Tercero, P. de Vicente, L. Colzi, F. Rico-Villas, S. Martín, and M. A. Requena-Torres. ApJL 912:L11 (2021). |
G+0.693-0.027 9 a-type transitions | ||||||||||||||||||
| 2021 | c-C3HCCH
ethynyl cyclopropenylidene |
Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 649:L15 (2021). |
TMC-1 13 lines | ||||||||||||||||||
| 2021 | c-C5H6
cyclopentadiene |
Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 649:L15 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | c-C9H8
indene
|
Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 649:L15 (2021). Discovery of the Pure Polycyclic Aromatic Hydrocarbon Indene (c-C9H8) with GOTHAM Observations of TMC-1 A. M. Burkhardt, K. L. K. Lee, P. B. Changala, C. N. Shingledecker, I. R. Cooke, R. A. Loomis, H. Wei, S. B. Charnley, E. Herbst, M. C. McCarthy, and B. A. McGuire. ApJL 913;L18 (2021). |
TMC-1 19 lines at 3σ | ||||||||||||||||||
| 2021 | NH2CH2CH2OH
ethanolamine |
Discovery in space of ethanolamine, the simplest phospholipid head group
V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, C. Briones, L. F. Rodríguez-Almeida, F. Rico-Villas, B. Tercero, S. Zeng, L. Colzi, P. de Vicente, S. Martín, and M. A. Requena-Torres. Proc Nat Acad Sci 118:e2101314118 (2021). |
G+0.693-0.027 14 unblended or slightly blended rotational lines | ||||||||||||||||||
| 2021 | H2C5
pentatetraenylidene |
Cumulene carbenes in TMC-1: Astronomical discovery of l-H2C5
C. Cabezas, B. Tercero, M. Agúndez, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 650:L9 (2021). |
TMC-1 11 transitions with Jup=7-10, Ka=0, Ka=1 | ||||||||||||||||||
| 2021 | HCSCN
cyano- thioformaldehyde
|
The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH
J. Cernicharo, C. Cabezas, Y. Endo, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, and P. de Vicente. A&A 650:L14 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | HCSCCH
propynethial |
The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH
J. Cernicharo, C. Cabezas, Y. Endo, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, and P. de Vicente. A&A 650:L14 (2021). |
TMC-1 various lines | ||||||||||||||||||
| 2021 | HNCN
cyanomidyl radical |
Detection of the cyanomidyl radical (HNCN): a new interstellar species with the NCN backbone
V. M. Rivilla, I. Jiménez-Serra, J. García de la Concepción, J. Martín-Pintado, L. Colzi, L. F. Rodríguez-Almeida, B. Tercero, F. Rico-Villas, S. Zeng, S. Martín, M. A. Requena-Torres, and P. de Vicente. >MNRASL 506:L79 (2021). |
G+0.693-0.027 N=6-5 (unblended doublet) N=4-3 (one unblended line) N=5-4 (one line, blended) | ||||||||||||||||||
| 2021 | o-C6H4
ortho-benzyne
|
Discovery of benzyne, o-C6H4, in TMC-1 with the QUIJOTE line survey
J. Cernicharo, M. Agúndez, R. I. Kaiser, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 652:L9 (2021). |
TMC-1 7 transitions | ||||||||||||||||||
| 2021 | H2CCCHC3N
cyanoacetyleneallene |
Detection of interstellar H2CCCHC3N - A possible link between chains and rings in
cold cores
C. N. Shingledecker, K. L. K. Lee, J. T. Wandishin, N. Balucani, A. M. Burkhardt, S. B. Charnley, R. Loomis, M. Schreffler, M. Siebert, M. C. McCarthy, and B. A. McGuire. A&A 652:L12 (2021). Discovery of CH2CCHC4H and a rigorous detection of CH2CCHC3N in TMC-1 with the QUIJOTE line survey R. Fuentetaja, C. Cabezas, M. Agúndez, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 663;L3 (2022) |
TMC-1 various lines | ||||||||||||||||||
| 2021 | MgC5N
magnesium cyanodiacetylide |
Magnesium radicals MgC5N and MgC6H in IRC +10216
J. R. Pardo, C. Cabezas, J. P. Fonfría, M. Agúndez, B. Tercero, P. de Vicente, M. Guélin, and J. Cernicharo. A&A 652:L13 (2021). |
IRC +10216 6 doublets | ||||||||||||||||||
| 2021 | MgC6H
magnesium triacetylide |
Magnesium radicals MgC5N and MgC6H in IRC +10216
J. R. Pardo, C. Cabezas, J. P. Fonfría, M. Agúndez, B. Tercero, P. de Vicente, M. Guélin, and J. Cernicharo. A&A 652:L13 (2021). |
IRC +10216 6 doublets | ||||||||||||||||||
| 2021 | C2H5CONH2
propionamide |
Propionamide (C2H5CONH2): The Largest Peptide-like Molecule in Space
J. Li, J. Wang, X. Lu, V. Ilyushin, R. A. Motiyenko, Q. Gou, E. A. Alekseev, D. Quan, L. Margulès, F. Gao, F. J. Lovas, Y. Wu, E. Bergin, S. Li, Z. Shen, F. Du, M. Li, S. Zheng, and X. Zheng. ApJ 919: 4 (2021). This detection has been disputed: Laboratory rotational spectroscopy of acrylamide and a search for acrylamide and propionamide toward Sgr B2(N) with ALMA L. Kolesniková, A. Belloche, J. Koucký, E. R. Alonso, R. T. Garrod, K. Luková, K. M. Menten, H. S. P. Müller, P. Kania, and Š. Urban. A&A 659:A111 (2022). Searching for Propionamide (C2H5CONH2) toward Sagittarius B2 at Centimeter Wavelengths C. Schuessler, A. Remijan, C. Xue, J. Carder, H. Scolati, and B. McGuire. ApJ 941:102 (2022). |
Sgr B2(N1) 14 E and A lines | ||||||||||||||||||
| 2021 | C2H3NH2
vinylamine
|
Probing the Chemical Complexity of Amines in the ISM: Detection of Vinylamine
(C2H3NH2) and Tentative Detection of Ethylamine
(C2H5NH2)
S. Zeng, I. Jiménez-Serra, V. M. Rivilla, J. Martín-Pintado, L. F. Rodríguez-Almeida, B. Tercero, P. de Vicente, F. Rico-Villas, L. Colzi, S. Martín, and M. A. Requena-Torres. ApJ 920:L27 (2021). |
G+0.693-0.027 5 clean transitions | ||||||||||||||||||
| 2021 | C2H5NH2
ethylamine |
Probing the Chemical Complexity of Amines in the ISM: Detection of Vinylamine
(C2H3NH2) and Tentative Detection of Ethylamine
(C2H5NH2)
S. Zeng, I. Jiménez-Serra, V. M. Rivilla, J. Martín-Pintado, L. F. Rodríguez-Almeida, B. Tercero, P. de Vicente, F. Rico-Villas, L. Colzi, S. Martín, and M. A. Requena-Torres. ApJ 920:L27 (2021). |
G+0.693-0.027 4 clean transitions | ||||||||||||||||||
| 2021 | C2H5NCO
ethyl isocyanate |
First detection of C2H5NCO in the ISM and search of other isocyanates towards the
G+0.693-0.027 molecular cloud
L. F. Rodríguez-Almeida, V. M. Rivilla, I. Jiménez-Serra, M. Melosso, L. Colzi, S. Zeng, B. Tercero, P. de Vicente, S. Martín, M. A. Requena-Torres, F. Rico-Villas, and J. Martín-Pintado. A&A 654:L1 (2021). |
G+0.693-0.027 5 clean transitions | ||||||||||||||||||
| 2021 | CH2CCCN
3-cyano propargyl |
Discovery of interstellar 3-cyano propargyl radical, CH2CCCN
C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 654:L9 (2021). |
TMC-1 3 transitions | ||||||||||||||||||
| 2021 | H2NC |
Interstellar detection of the simplest aminocarbyne H2NC: an ignored but abundant molecule
C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, S. Cuadrado, and J. Cernicharo. A&A 654:A45 (2021). |
L483, PKS 1820-211, B1-b many transitions | ||||||||||||||||||
| 2021 | c-C5H5CCH
2-ethynyl-cyclopentadiene |
Discovery of two isomers of ethynyl cyclopentadiene in TMC-1: Abundances of CCH and CN derivatives of
hydrocarbon cycles
J. Cernicharo, M. Agúndez, R. I. Kaiser, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 655:L1 (2021). |
TMC-1 24 a-type transitions | ||||||||||||||||||
| 2021 | c-C5H5CCH
1-ethynyl-cyclopentadiene |
Discovery of two isomers of ethynyl cyclopentadiene in TMC-1: Abundances of CCH and CN derivatives of
hydrocarbon cycles
J. Cernicharo, M. Agúndez, R. I. Kaiser, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 655:L1 (2021). |
TMC-1 14 a-type transition | ||||||||||||||||||
| 2021 | C6H5CCH
ethynyl benzene
|
Discovery of two isomers of ethynyl cyclopentadiene in TMC-1: Abundances of CCH and CN derivatives of
hydrocarbon cycles
J. Cernicharo, M. Agúndez, R. I. Kaiser, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, and P. de Vicente. A&A 655:L1 (2021). Detection of ethynylbenzene in TMC-1 and the interstellar search for 1,2-diethynylbenzene D. Loru, C. Cabezas, J. Cernicharo, M. Schnell, and A. L. Steber. A&A 677:A166 (2023). |
TMC-1 many transitions | ||||||||||||||||||
| 2021 | HCCCO
propynonyl radical |
Discovery of HCCCO and C5O in TMC-1 with the QUIJOTE line survey
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, R. Fuentetaja, J. R. Pardo, and P. de Vicente. A&A 656:L21 (2021). |
TMC-1 8 transitions | ||||||||||||||||||
| 2021 | C5O
pentacarbon monoxide |
Discovery of HCCCO and C5O in TMC-1 with the QUIJOTE line survey
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, R. Fuentetaja, J. R. Pardo, and P. de Vicente. A&A 656:L21 (2021). |
TMC-1 12-11 (32804.100 MHz) 13-12 (35527.730 MHz) 14-13 (38271.356 MHz) 15-14 (41004.959 MHz) 16-15 (43738.562 MHz) 17-16 (46472.169 MHz) | ||||||||||||||||||
| 2022 | CH3C7N
methylcyano- triacetylene |
CH3-Terminated Carbon Chains in the GOTHAM Survey of TMC-1: Evidence of Interstellar
CH3C7
M. A. Siebert, K. L. K. Lee, A. J. Remijan, A. M. Burkhardt, The GOTHAM Collaboration, R. A. Loomis, M. C. McCarthy, and B. A. McGuire. ApJ 924:21 (2022). |
TMC-1 line stacking with >30 transitions | ||||||||||||||||||
| 2022 | HCCS+
thioketenylium |
Discovery of the elusive thioketenylium, HCCS+, in TMC-1
C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, Y. Endo, R. Fuentetaja, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 657:L4 (2022). |
TMC-1 26 hyperfine components from 12 transitions | ||||||||||||||||||
| 2022 | C5H+ |
Discovery of C5H+ and detection of C3H+ in TMC-1 with the
QUIJOTE line survey
J. Cernicharo, M. Agúndez, C. Cabezas, R. Fuentetaja, B. Tercero, N. Marcelino, Y. Endo, J. R. Pardo, and P. de Vicente. A&A 657:L16 (2022). |
TMC-1 4 lines | ||||||||||||||||||
| 2022 | HC7NH+
protonated-HC7N |
Discovery of a new molecular ion, HC7NH+, in TMC-1
C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, R. Fuentetaja, P. de Vicente, and J. Cernicharo. A&A 659:L8 (2022). |
TMC-1 9 transitions | ||||||||||||||||||
| 2022 | HCCNCH+
protonated-HCCNC |
A new protonated molecule discovered in TMC-1: HCCNCH+
M. Agúndez, C. Cabezas, N. Marcelino, R. Fuentetaja, B. Tercero, P. de Vicente, and J. Cernicharo. A&A 659:L9 (2022). |
TMC-1 4 transitions | ||||||||||||||||||
| 2022 | Z-(CHOH)2
Z-1,2-ethenediol
|
Precursors of the RNA World in Space: Detection of (Z)-1,2-ethenediol in the Interstellar Medium, a Key
Intermediate in Sugar Formation
V. M. Rivilla, L. Colzi, I. Jiménez-Serra, J. Martín-Pintado, A. Megías, M. Melosso, L. Bizzocchi, &Aaacute;. López-Gallifa, A. Martínez-Henares, S. Massalkh, B. Tercero, P. de Vicente, J.-C. Guillemin, J. García de la Concepción, F. Rico-Villas, S. Zeng, S. Martín, M. A. Requena-Torres, F. Tonolo, S. Alessandrini, L. Dore, V. Barone, and C. Puzzarini. ApJL 929:L11 (2022). |
G+0.693-0.027 18 unblended & blended transitions | ||||||||||||||||||
| 2022 | PO+
phosporus monoxide ion |
Ionize Hard: Interstellar PO+ Detection
V. M. Rivilla, J. García De La Concepción, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, B. Tercero, A. Megías, Á. López-Gallifa, A. Martínez-Henares, S. Massalkhi, S. Martín, S. Zeng, P. De Vicente, F. Rico-Villas, M. A. Requena-Torres, and G. Cosentino. Front Astron Space Sci:9, 829288 (2022). |
G+0.693-0.027 J = 1-0 (47.024252 GHz) J = 2-1 (94.047798 GHz) J = 3-2 (141.069934 GHz) J = 5-4 (235.107153 GHz) (only the first two transitions are unblended) | ||||||||||||||||||
| 2022 | HOCHCHCHO
3-hydroxypropenal |
The ALMA-PILS survey: First tentative detection of 3-hydroxypropenal (HOCHCHCHO) in the interstellar medium
and chemical modeling of the C3H4O2 isomers
A. Coutens, J.-C. Loison, A. Boulanger, E. Caux, H. S. P. Müller, V. Wakelam, S. Manigand, and J. K. Jørgensen. A&A 660:L6 (2022). The rotation-tunneling spectrum of 3-hydroxypropenal and confirmation of its detection toward IRAS 16293-2422 B H. S. P. Müller, A. Coutens, J. K. Jørgensen, L. Margulès, R. A. Motiyenko, and J.-C. Guillemin. A&A 687:A8 (2024). |
IRAS 16293-2422 B 11 lines + 7 additional lines | ||||||||||||||||||
| 2022 | i-C3H7OH
iso-propanol |
Interstellar detection and chemical modeling of iso-propanol and its normal isomer
A. Belloche, R. T. Garrod, O. Zingsheim, H. S. P. Müller, and K. M. Menten. A&A 662:A110 (2022). |
Sgr B2(N) various transitions | ||||||||||||||||||
| 2022 | n-C3H7OH
normal-propanol |
Precursors of fatty alcohols in the ISM: Discovery of n-propanol
I. Jiménez-Serra, L. F. Rodríguez-Almeida, J. Martín-Pintado, V. M. Rivilla, M. Melosso, S. Zeng, L. Colzi, Y. Kawashima, E. Hirota, C. Puzzarini, B. Tercero, P. de Vicente, F. Rico-Villas, M. A. Requena-Torres, and S. Martín. A&A 663:A181 (2022) Interstellar detection and chemical modeling of iso-propanol and its normal isomer A. Belloche, R. T. Garrod, O. Zingsheim, H. S. P. Müller, and K. M. Menten. A&A 662:A110 (2022). |
G+0.693-0.027 various transitions Sgr B2(N) various transitions | ||||||||||||||||||
| 2022 | c-C5H |
Discovery of the cyclic C5H radical in TMC-1
C. Cabezas, M. Agúndez, R. Fuentetaja, Y. Endo, N. Marcelino, B. Tercero, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 663:L2 (2022). |
TMC-1 17 transitions | ||||||||||||||||||
| 2022 | CH2CCHC4H
allenyl diacetylene |
Discovery of CH2CCHC4H and a rigorous detection of CH2CCHC3N
in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, C. Cabezas, M. Agúndez, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 663;L3 (2022) |
TMC-1 20 transitions | ||||||||||||||||||
| 2022 | t-CH3CHCHCN
trans-crotononitrile |
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente. A&A 663:L5 (2022). |
TMC-1 various transitions | ||||||||||||||||||
| 2022 | c-CH3CHCHCN
cis-crotononitrile |
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente. A&A 663:L5 (2022). |
TMC-1 various transitions | ||||||||||||||||||
| 2022 | CH2C(CH3)CN
methylacrylonitrile |
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente. A&A 663:L5 (2022). |
TMC-1 various transitions | ||||||||||||||||||
| 2022 | g-CH2CHCH2CN
gauche-allyl cyanide |
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente. A&A 663:L5 (2022). |
TMC-1 various transitions | ||||||||||||||||||
| 2022 | c-CH2CHCH2CN
cis-allyl cyanide |
Discovery of five cyano derivatives of propene with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente. A&A 663:L5 (2022). |
TMC-1 various transitions | ||||||||||||||||||
| 2022 | c-C5H4CCH2
fulvenallene
|
Discovery of fulvenallene in TMC-1 with the QUIJOTE line survey
J. Cernicharo, R. Fuentetaja, M. Agúndez, R. I. Kaiser, C. Cabezas, N. Marcelino, B. Tercero, J. R. Pardo, and P. de Vicente A&A 663:L9 (2022). |
TMC-1 30 transitions | ||||||||||||||||||
| 2022 | c-C9H7CN
2-cyanoindene
|
Discovery of Interstellar 2-Cyanoindene (2-C9H7CN) in GOTHAM Observations of TMC-1
M. L. Sita, P. B. Changala, C. Xue, A. M. Burkhardt, C. N. Shingledecker, K. L. K. Lee, R. A. Loomis, E. Momjian, M. A. Siebert, D. Gupta, E. Herbst, A. J. Remijan, M. C. McCarthy, I. R. Cooke, and B. A. McGuire. ApJL 938:L12 (2022). |
TMC-1 various lines | ||||||||||||||||||
| 2022 | SiP
silicon phosphide |
Laboratory and Astronomical Detection of the SiP Radical (X2Πi): More
Circumstellar Phosphorus
L. A. Koelemay, M. A. Burton, A. P. Singh, P. M. Sheridan, J. J. Bernal, and L. M. Ziurys. ApJL 940:L11 (2022). |
IRC +10216 J = 8.5 → 7.5 J = 13.5 → 12.5 J = 16.5 → 15.5 J = 17.5 → 16.5 unresolved hyperfine splitting | ||||||||||||||||||
| 2022 | HCCCHCCC
ethynylbuta- trienylidene |
Discovery of two new interstellar molecules with QUIJOTE: HCCCHCCC and HCCCCS
R. Fuentetaja, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 667:L4 (2022). |
TMC-1 29 rotational transitions | ||||||||||||||||||
| 2022 | HCCCCS
butadiynethionyl |
Discovery of two new interstellar molecules with QUIJOTE: HCCCHCCC and HCCCCS
R. Fuentetaja, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 667:L4 (2022). |
TMC-1 6 rotational transitions | ||||||||||||||||||
| 2022 | MgC2
magnesium dicarbide |
Laboratory and Astronomical Discovery of Magnesium Dicarbide, MgC2
P. B. Changala, H. Gupta, J. Cernicharo, J. R. Pardo, M. Ag&uacyte;ndez, C. Cabezas, B. Tercero, M. Guélin, and M. C. McCarthy. ApJL 940:L42 (2022). |
IRC +20216 14 rotational lines assigned to 24MgC2, 25MgC2, & 26MgC2 | ||||||||||||||||||
| 2023 | NC4NH+
protonated dicyanoacetylene |
Discovery of interstellar NC4NH+: Dicyanopolyynes are indeed abundant in space
M. Agúndez, C. Cabezas, N. Marcelino, R. Fuentetaja, B. Tercero, P. de Vicente, and J. Cernicharo A&A 669:L1 (2023). |
TMC-1 J = 13-12 (33641.365 MHz) J = 14-13 (36229.121 MHz) J = 15-14 (38816.863 MHz) J = 16-15 (41404.606 MHz) J = 17-16 (43992.330 MHz) J = 18-17 (46580.010 MHz) | ||||||||||||||||||
| 2023 | CH2=CH-CH=NH
allylimine
|
Laboratory spectroscopy of allylimine and tentative detection towards the G+0.693-0.027 molecular cloud
D. Alberton, L. Bizzocchi, N. Jiang, M. Melosso, V. M. Rivilla, A. Pietropolli Charmet, B. M. Giuliano, P. Caselli, C. Puzzarini, S. Alessandrini, L. Dore, I. Jiménez-Serra, and J. Martín-Pintado. A&A 669:A93 (2023). |
G+0.293-0.027 8 transitions each for trans-anti and trans-syn isomers | ||||||||||||||||||
| 2023 | C10H–
decapentaynyl anion |
Astronomical Detection of the Interstellar Anion C10H– toward TMC-1 from the
GOTHAM Large Program on the Green Bank Telescope
A. Remijan, H. N. Scolati, A. M. Burkhardt, P. B. Changala, S. B. Charnley, I. R. Cooke, M. A. Cordiner, H. Gupta, E. Herbst, K. L. K. Lee, R. A. Loomis, C. N. Shingledecker, M. A. Siebert, C. Xue, M. C. McCarthy, and B. A. McGuire. ApJL 944:L45 (2023). |
TMC-1 various transitions | ||||||||||||||||||
| 2023 | C10H
decapentaynyl radical |
Astronomical Detection of the Interstellar Anion C10H– toward TMC-1 from the
GOTHAM Large Program on the Green Bank Telescope
A. Remijan, H. N. Scolati, A. M. Burkhardt, P. B. Changala, S. B. Charnley, I. R. Cooke, M. A. Cordiner, H. Gupta, E. Herbst, K. L. K. Lee, R. A. Loomis, C. N. Shingledecker, M. A. Siebert, C. Xue, M. C. McCarthy, and B. A. McGuire. ApJL 944:L45 (2023). |
TMC-1 various transitions | ||||||||||||||||||
| 2023 | C7N–
cyanohexatriynyl anion |
Discovery of the C7N– anion in TMC-1 and IRC +10216
J. Cernicharo, J. R. Pardo, C. Cabezas, M. Agúndez, B. Tercero, N. Marcelino, R. Fuentetaja, M. Guélin, and P. de Vicente. A&A 670:L19 (2023). |
TMC-1, IRC +10216 6 lines toward TMC-1, 17 lines toward IRC +10216 | ||||||||||||||||||
| 2023 | CH3CHCO
methyl ketene
|
Discovery of CH3CHCO in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, C. Bermúdez, C. Cabezas, M. Agúndez, B. Tercero, N. Marcelino, J. R. Pardo, L. Margulès, R. A. Motiyenko, J.-C. Guillemin, P. de Vicente, and J. Cernicharo. A&A 671:L6 (2023). |
TMC-1 19 transitions, 11 > 3σ | ||||||||||||||||||
| 2023 | HMgCCCN
hydrido magnesium cyanoacetylide |
Discovery of two metallic cyanoacetylides in IRC +10216: HMgCCCN and NaCCCN
C. Cabezas, J. R. Pardo, M. Agúndez, B. Tercero, N. Marcelino, Y. Endo, P. de Vicente, M. Guélin, and J. Cernicharo. A&A 672:L12 (2023). |
IRC +10216 12-11 (31672.704 MHz) 13-12 (34311.875 MHz) 14-13 (36951.092 MHz) 15-14 (39590.327 MHz) 16-15 (42229.489 MHz) 17-16 (44868.617 MHz) 18-16 (47507.686 MHz) 19-18 (50146.722 MHz) | ||||||||||||||||||
| 2023 | NaCCCN
sodium cyanoacetylide |
Discovery of two metallic cyanoacetylides in IRC +10216: HMgCCCN and NaCCCN
C. Cabezas, J. R. Pardo, M. Agúndez, B. Tercero, N. Marcelino, Y. Endo, P. de Vicente, M. Guélin, and J. Cernicharo. A&A 672:L12 (2023). |
IRC +10216 12-11 (31705.51 MHz) 13-12 (34347.56 MHz) 14-13 (36989.38 MHz) 15-14 (39631.36 MHz) 16-15 (42273.31 MHz) 17-16 (44915.22 MHz) 18-17 (47556.89 MHz) | ||||||||||||||||||
| 2023 | MgC4H+ |
The magnesium paradigm in IRC +10216: Discovery of MgC4H+, MgC3N+,
MgC6H+, and MgC5N+
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, O. Roncero, B. Tercero, N. Marcelino, M. Guélin, Y. Endo, and P. de Vicente. A&A 672:L13 (2023). |
IRC +10216 16 transitions | ||||||||||||||||||
| 2023 | MgC3N+ |
The magnesium paradigm in IRC +10216: Discovery of MgC4H+, MgC3N+,
MgC6H+, and MgC5N+
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, O. Roncero, B. Tercero, N. Marcelino, M. Guélin, Y. Endo, and P. de Vicente. A&A 672:L13 (2023). |
IRC +10216 7 transitions | ||||||||||||||||||
| 2023 | MgC6H+ |
The magnesium paradigm in IRC +10216: Discovery of MgC4H+, MgC3N+,
MgC6H+, and MgC5N+
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, O. Roncero, B. Tercero, N. Marcelino, M. Guélin, Y. Endo, and P. de Vicente. A&A 672:L13 (2023). |
IRC +10216 16 transitions | ||||||||||||||||||
| 2023 | MgC5N+ |
The magnesium paradigm in IRC +10216: Discovery of MgC4H+, MgC3N+,
MgC6H+, and MgC5N+
J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, O. Roncero, B. Tercero, N. Marcelino, M. Guélin, Y. Endo, and P. de Vicente. A&A 672:L13 (2023). |
IRC +10216 16 transitions | ||||||||||||||||||
| 2023 | E-1-C4H5CN
1-cyano-butadiene
|
Detection of Interstellar E-1-cyano-1,3-butadiene in GOTHAM Observations of TMC-1
I. R. Cooke, C. Xue, P. B. Changala, H. Toru Shay, A. N. Byrne, Q. Y. Tang, Z. T. P. Fried, K. L. K. Lee, R. A. Loomis, T. Lamberts, A. Remijan, A. M. Burkhardt, E. Herbst, M. C. McCarthy, and B. A. McGuire. ApJ 948:133 (2023). |
TMC-1 various lines | ||||||||||||||||||
| 2023 | HSO |
First detection of the HSO radical in space
N. Marcelino, C. Puzzarini, M. Agúndez, R. Fuentetaja, B. Tercero, P. de Vicente, and J. Cernicharo. A&A 674:L13 (2023). |
B1-b, TMC-1, L183, L482, L1495B, L1527, Lupus-1A N=10,1-00,0 (MHz) J=3/2-1/2, F=1-0 (39517.594) J=3/2-1/2, F=2-1 (39532.222) J=3/2-1/2, F=1-1 (39553.437) J=1/2-1/2, F=1-0 (39826.667) J=1/2-1/2, F=0-1 (39857.412) J=1/2-1/2, F=1-1 (39862.510) N = 20,2-10,1 (MHz) J=5/2-3/2, F=2-1 (79162.483) J=5/2-3/2, F=3-2 (79164.927) J=5/2-3/2, F=2-2 (79183.698) J=3/2-1/2, F=1-1 (79368.415) J=3/2-1/2, F=1-0 (79373.513) J=3/2-1/2, F=2-1 (79378.696) J=3/2-3/2, F=1-1 (79677.488) J=3/2-3/2, F=2-2 (79708.983) | ||||||||||||||||||
| 2023 | C11H12N2O2
tryptophan | 17 Jun 2024 – Tryptophan has been moved to the non-detections page. | |||||||||||||||||||
| 2023 | H2CCCH+
protonated propadienylidene |
Discovery of H2CCCH+ in TMC-1
W. G. D. P. Silva, J. Cernicharo, S. Schlemmer, N. Marcelino, J.-C. Loison, M. Agúndez, D. Gupta, V. Wakelam, S. Thorwirth, C. Cabezas, B. Tercero, J. L. Doménech, R. Fuentetaja, W.-J. Kim, P. de Vicente, and O. Asvany. A&A 676:L1 (2023). |
TMC-1 14 mm-wave lines | ||||||||||||||||||
| 2023 | H2CCCN
cyanovinyl radical |
Laboratory and astronomical discovery of the cyanovinyl radical H2CCCN
C. Cabezas, J. Tang, M. Agúndez, K. Seiki, Y. Sumiyoshi, Y. Ohshima, B. Tercero, N. Marcelino, R. Fuentetaja, P. de Vicente, Y. Endo, and J. Cernicharo. A&A 676:L5 (2023). |
TMC-1 40,4-30,3, 50,5-40,4 transitions with hyperfine components | ||||||||||||||||||
| 2023 | NH2C(O)CH2OH
syn-glycolamide
|
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH)
V. M. Rivilla, M. Sanz-Novo, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, S. Zeng, A. Megías, Á. López-Gallifa, A. Martínez-Henares, S. Massalkhi, B. Tercero, P. de Vicente, S. Martín, D. San Andrés, M. A. Requena-Torres, and J. L. Alonso. ApJL 953:L20 (2023). |
G+0.693-0.027 various blended & unblended transitions | ||||||||||||||||||
| 2023 | HOCOOH
carbonic acid
|
Discovery of the Elusive Carbonic Acid (HOCOOH) in Space
M. Sanz-Novo, V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, S. Zeng, A. Megías, Á. López-Gallifa, A. Martínez-Henares, S. Massalkhi, B. Tercero, P. de Vicente, S. Martín, D. San Andrés, and M. A. Requena-Torres. ApJ 954:3 (2023). |
G+0.693-0.027 various unblended & partially blended transitions | ||||||||||||||||||
| 2023 | FeC
iron carbide |
Elusive Iron: Detection of the FeC Radical (X3Δi) in the
Envelope of IRC+10216
L. A. Koelemay and L. M. Ziurys. ApJL 958:L6 (2023). |
IRC +10216 J = 4 → 3 (160590.7889 MHz) J = 5 → 4 (200729.7762 MHz) J = 6 → 5 (240862.9510 MHz) | ||||||||||||||||||
| 2023 | (CH3)2C=CH2
isobutene
|
Millimetre and submillimetre spectroscopy of isobutene and its detection in the molecular cloud G+0.693
M. Fatima, H. S. P. Müller, O. Zingsheim, F. Lewen, V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, and S. Schlemmer. A&A 680:A25 (2023). |
G+0.693-0.027 multiple transitions | ||||||||||||||||||
| 2024 | NCCONH2
cyanoformamide
|
Tentative detection of cyanoformamide NCCONH2 in space
J. Li, D. Quan, J. Wang, X. Zhang, X. Lu, Q. Gou, F. Gao, Y. Wu, E. Bergin, S. Li, Z. Shen, F. Du, M. Li, S. Zheng, and X. Zheng. Publ Astron Soc Japan 76:54-64 (2024). |
Sgr B2(N1E) 10 unblended lines | ||||||||||||||||||
| 2024 | HCNS
thiofulminic acid
|
Discovery of thiofulminic acid with the QUIJOTE line survey: A study of the isomers of HNCS and HNCO in TMC-1
J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, R. Fuentetaja, N. Marcelino, and P. de Vicente. A&A 682:L4 (2024). |
TMC-1 J=3-2 (36908.475 MHz) J=4-3 (49211.115 MHz) J=6-5 (73815.835 MHz) | ||||||||||||||||||
| 2024 | HOCS+
protonated OCS |
Interstellar Detection of O-protonated Carbonyl Sulfide, HOCS+
M. Sanz-Novo, V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, S. Zeng, A. Megías, Á. López-Gallifa, A. Martínez-Henares, S. Massalkh, B. Tercero, P. de Vicente, D. San Andrés, S. Martín, and M. A. Requena-Torres. ApJ 965:149 (2024). |
G+0.693-0.027 10 blended transitions | ||||||||||||||||||
| 2024 | CH3OCH2CH2OH
2-methoxyethanol
|
Rotational Spectrum and First Interstellar Detection of 2-methoxyethanol Using ALMA Observations of
NGC 6334I
Z. T. P. Fried, S. J. El-Abd, B. M. Hays, G. Wenzel, A. N. Byrne, L. Margulès, R. A. Motiyenko, S. T. Shipman, M. P. Horne, J. K. Jørgensen, C. L. Brogan, T. R. Hunter, A. J. Remijan, A. Lipnicky, R. A. Loomis, and B. A. McGuire. ApJL 965:L23 (2024). |
NGC 6334I 25 rotational transitions | ||||||||||||||||||
| 2024 | HNSO
thionylimide
|
Discovery of Thionylimide, HNSO, in Space: The first N-, S-, and O-bearing Interstellar Molecule
M. Sanz-Novo, V. M. Rivilla, H. S. P. Müller, I. Jiménez-Serra, J. Martín-Pintado, L. Colzi, S. Zeng, A. Megías, Á. López-Gallifa, A. Martínez-Henare, B. Tercero, P. de Vicente, D. San Andrés, Se. Martín, and M. A. Requena-Torres. ApJL 965:L26 (2024). |
G+0.693-0.027 26 unblended rotational transitions | ||||||||||||||||||
| 2024 | CaC2
calcium dicarbide |
Calcium Chemistry in Carbon-rich Circumstellar Environments: The Laboratory and Astronomical Discovery
of Calcium Dicarbide, CaC2
H. Gupta, P. B. Changala, J. Cernicharo, J. R. Pardo, M. Agúndez, C. Cabezas, B. Tercero, M. Guélin, and M. C. McCarthy. ApJL 966:L28 (2024). |
IRC +10216 100-000 (14134.168 MHz) 202-101 (28252.714 MHz) 303-202 (42340.05 MHz) 322-221 (42399.12 MHz) 321-220 (42460.92 MHz) 505-404 (70359.45 MHz) 523-422 (70937.86 MHz) 606-505 (84262.30 MHz) 643-542 (84829.20 MHz) 641-541 (84829.20 MHz) 707-606 (98077.46 MHz) 726-625 (98805.58 MHz) 744-643 (98981.70 MHz) 743-642 (98981.70 MHz) 808-707 (111793.80 MHz) 826-725 (114136.85 MHz) | ||||||||||||||||||
| 2024 | H2CNCN
N-cyanomethanimine
|
First Detection in Space of the High-energy Isomer of Cyanomethanimine: H2CNCN
D. San Andrés, V. M. Rivilla, L. Colzi, I. Jiménez-Serra, J. Martín-Pintado, A. Megías, Á. López-Gallifa, A. Martínez-Henares, S. Massalkhi, S. Zeng, M. Sanz-Novo, B. Tercero, P. de Vicente, S. Martín, M. A. Requena Torres, G. Molpeceres, and J. García de la Concepción. ApJ 967:39 (2024). |
G+0.693-0.027 "a plethora of a-type transitions with 3 ≤ Jup ≤ 11 and Ka ≤ 2" | ||||||||||||||||||
| 2024 | NCCHCS
cyanothioketene
|
Laboratory and astronomical discovery of cyanothioketene, NCCHCS, in the cold starless core TMC-1
C. Cabezas, M. Agúndez, Y. Endo, B. Tercero, Y.-P. Lee, N. Marcelino, P. de Vicente, and J. Cernicharo. A&A 686:L3 (2024). |
TMC-1 23 transitions with Ju=9-14 and Ka=0,1,2 | ||||||||||||||||||
| 2024 | HC5N+
cyanodiacetylene cation |
QUIJOTE discovery of the cation radicals HC5N+ and HC7N+
J. Cernicharo, C. Cabezas, M. Agúndez, Y. Endo, B. Tercero, N. Marcelino, and P. de Vicente. A&A 686:L15 (2024). |
TMC-1 7 transitions from J=25/2-23/2 to 37/2-35/2 | ||||||||||||||||||
| 2024 | HC7N+
cyanotriacetylene cation |
QUIJOTE discovery of the cation radicals HC5N+ and HC7N+
J. Cernicharo, C. Cabezas, M. Agúndez, Y. Endo, B. Tercero, N. Marcelino, and P. de Vicente. A&A 686:L15 (2024). |
TMC-1 8 transitions from J=55/2-53/2 to 71/2-69/2 | ||||||||||||||||||
| 2024 | HC3N+
cyanoacetylene cation radical |
Discovery of the interstellar cyanoacetylene radical cation HC3N+
C. Cabezas, M. Agúndez, Y. Endo, B. Tercero, N. Marcelino, P. de Vicente, and J. Cernicharo. A&A> 687:L22 (2024). |
TMC-1 J=7/5-5/2 (w/hyperfine) J=9/5-7/2 (w/hyperfine) J=11/5-9/2 (w/hyperfine) | ||||||||||||||||||
| 2024 | NC3S
N≡C–C≡C–S•
|
More sulphur in TMC-1: Discovery of the NC3S and HC3S radicals with the QUIJOTE line
survey
J. Cernicharo, C. Cabezas, M. Agúndez, R. Fuentetaja, B. Tercero, N. Marcelino, and P. de Vicente. A&A 688:L13 (2024). |
TMC-1 various lines | ||||||||||||||||||
| 2024 | HC3S
H–C≡C–C=S•
|
More sulphur in TMC-1: Discovery of the NC3S and HC3S radicals with the QUIJOTE line
survey
J. Cernicharo, C. Cabezas, M. Agúndez, R. Fuentetaja, B. Tercero, N. Marcelino, and P. de Vicente. A&A 688:L13 (2024). |
TMC-1 various lines | ||||||||||||||||||
| 2024 | HCCCH2CCH
1,4-pentadiyne
|
Discovery of HCCCH2CCH in TMC-1 with the QUIJOTE line survey
R. Fuentetaja, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo. A&A 688:L15 (2024). |
TMC-1 17 transitions with J = 2 - 13, Ka = 0, 1, 2 | ||||||||||||||||||
| 2024 | HNC5
iminopenta- dienylidene
|
Space and laboratory discovery of iminopentadienylidene, HNC5
R. Fuentetaja, C. Cabezas, Y. Endo, M. Agúndez, B. Tercero, N. Marcelino, P. de Vicente, and J. Cernicharo. A&A 688:L29 (2024). |
TMC-1 J=12-11 (32681.784 MHz) J=13-12 (35405.222 MHz) J=14-13 (38128.657 MHz) J=15-14 (40852.984 MHz) J=16-15 (43575.481 MHz) J=17-16 (46298.876 MHz) (molecule is quasilinear) | ||||||||||||||||||
| 2024 | CH2(CN)2
malononitrile
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The rich interstellar reservoir of dinitriles: Detection of malononitrile and maleonitrile in TMC-1
M. Agúndez, C. Bermúdez, C. Cabezas, G. Molpeceres, Y. Endo, N. Marcelino, B. Tercero, J.-C. Guillemin, P. de Vicente and J. Cernicharo. A&A 688:L31 (2024). |
TMC-1 4 transitions | ||||||||||||||||||
| 2024 | Z-NCCHCHCN
maleonitrile
|
The rich interstellar reservoir of dinitriles: Detection of malononitrile and maleonitrile in TMC-1
M. Agúndez, C. Bermúdez, C. Cabezas, G. Molpeceres, Y. Endo, N. Marcelino, B. Tercero, J.-C. Guillemin, P. de Vicente and J. Cernicharo. A&A 688:L31 (2024). |
TMC-1 8 transitions | ||||||||||||||||||
uv-vis (electronic) microwave/mm/sub-mm (rotational) infrared (vibrational)
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