Abstract
view Abstract Citations (21) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Search for interstellar pyrrole and furan. Kutner, M. L. ; Machnik, D. E. ; Tucker, K. D. ; Dickman, R. L. Abstract Unsuccessful searches for the organic ring molecules pyrrole (C4H4N) and furan (C3H4O) are reported. In TMC-1, an upper limit to the pyrrole column density of 4 x 10 to the 12th/sq cm is found an order of magnitude less than the column density of HC5N in this source. In Sgr B2, the upper limit to the pyrrole column density is 6 x 10 to the 13th/sq cm, about 0.4 times the HC5N column density. These results suggest that chemical processes in these clouds favor the formation of chains over rings of comparable molecular weight. During these searches, a number of unidentified millimeter wavelength lines were also found; their frequencies are reported here. Publication: The Astrophysical Journal Pub Date: December 1980 DOI: 10.1086/158488 Bibcode: 1980ApJ...242..541K Keywords: Cyclic Hydrocarbons; Furans; Interstellar Chemistry; Molecular Clouds; Pyrroles; Electron Transitions; Interstellar Gas; Line Spectra; Millimeter Waves; Radio Sources (Astronomy); Astrophysics full text sources ADS | data products SIMBAD (1)
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