Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...233..177h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 233, no. 1, July 1990, p. 177-180.
Astronomy and Astrophysics
Astrophysics
65
Acetonitrile, Acrylonitriles, Density Distribution, Interstellar Chemistry, Molecular Clouds, Abundance, Hydrocarbons, Organic Compounds, Recombination Reactions
Scientific paper
The gas phase pseudo-time-dependent model of Herbst and Leung (1989) has been extended to include the newly-observed interstellar radical cyanomethyl (CH2CN) as well as vinyl cyanide (C2H3CN). The CH2CN radical is produced mainly by the reaction between N and C2H4(+). In addition, a new formation route for the cyanopolyynes has been included. The synthesis of C2H3CN and the additional synthesis of the cyanopolyynes involve reactions between the CN radical and neutral hydrocarbons. The results show that the abundances of CH2CN, C2H3CN, and the cyanopolyynes in the dark interstellar cloud TMC-1 can be accounted for by gas phase chemistry in the sense that peak calculated abundances are either equal to or somewhat exceed observed abundances.
Herbst Eric
Leung Man Chun
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