The detection of interstellar methyldiacetylene (CH3C4H)

Abstract

view Abstract Citations (36) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The detection of interstellar methyldiacetylene (CH3 C4 H). MacLeod, J. M. ; Avery, L. W. ; Broten, N. W. Abstract The CH3C4H interstellar molecule has been detected in the molecular cloud TMC-1, with a total column density lying in the range of 2.0 x 10 to the 13th/sq cm to 3.1 x 10 to the 13th/sq cm for 4-6 K rotational temperatures. By comparison with CH3C2H, the chemical process through which two carbon atoms are added to the chain to produce CH3C4H yields an abundance decrease of a factor of 2-4, as in the case for linear cyanopolyynes. Since this relative abundance factor of approximately 3 is common to several different types of carbon chain molecules, it is suggested to reflect the relative abundance of pure carbon chains of different lengths. Publication: The Astrophysical Journal Pub Date: July 1984 DOI: 10.1086/184312 Bibcode: 1984ApJ...282L..89M Keywords: Acetylene; Interstellar Matter; Methyl Compounds; Molecular Clouds; Abundance; Carbon; Cyano Compounds; Molecular Chains; Molecular Rotation; Radial Velocity; Astrophysics full text sources ADS | data products SIMBAD (1)