The formation of carbon chain molecules in IRC + 10216

Details The formation of carbon chain molecules in IRC + 10216 The formation of carbon chain molecules in IRC + 10216

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244..444h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, June 1, 1990, p. 444-449.

Astronomy and Astrophysics

Astronomy

61

Carbon Compounds, Carbon Stars, Molecular Chains, Organic Compounds, Stellar Envelopes, Cyano Compounds, Hydrocarbons, Silicon Carbides, Sulfur Compounds

Scientific paper

This paper considers the formation of carbon-chain molecules, including C(2n)H, C(n)S, HC(2n+1)N (n = 1-3) and SiC(n) (n = 1-4), in the outflowing envelope of the late-type carbon star IRC + 10216. The results suggest that the organosulphur species C2S and C3S can be formed in ion-molecule reactions involving acetylenic ions and parent CS and SiS molecules. In addition to ion-molecule processes, neutral-neutral reactions can play a significant role in the formation of hydrocarbons and cyanopolyynes with up to six heavy atoms and in the formation of SiC4, and suggest that SiC3 might be observable.

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