Title: Nonequilibrium chemical analysis of the coma of comet P/Stephan-Oterma
Abstract: A computer code to calculate the time-dependent nonequilibrium chemistry taking place within the coma of a comet has been developed. This code incorporates 1249 chemical reactions involving 128 species. Models were fit to data on Comet P/Stephan-Oterma (A. L. Cochran and E. S. Barker, 1985, Icarus 62, 72–81). It was shown that (1) HCN is the parent for CN; (2) C2H2 is a parent for C2; (3) pure gas-phase chemistry with known species cannot adequately reproduce the observed C3 but a single step process can; and (4) at least prior to perihelion, the vaporization rate seems to have been controlled by water vaporization.
Publication Year: 1985
Publication Date: 1985-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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