A CO2-rich coma model applied to the neutral coma of Comet West

Details A CO2-rich coma model applied to the neutral coma of Comet West A CO2-rich coma model applied to the neutral coma of Comet West

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1600m&link_type=abstract

Astronomical Journal, vol. 87, Nov. 1982, p. 1600-1605.

Astronomy and Astrophysics

Astronomy

1

Abundance, Carbon Dioxide, Comet Nuclei, Cometary Atmospheres, West Comet, Carbon, Coma, Cyanides, Interstellar Chemistry, Molecular Clouds, Comets, Carbon Dioxide, Comae, Models, West, Volatiles, Distance, Abundance, Comparisons, Evaporation, Comet Nuclei, Formation

Scientific paper

Models of the cometary coma in which the dominant volatile is CO2 have been constructed for a range of heliocentric distances. Model coma abundances of C2, C3, and CN are compared with the abundances observed in Comet West and are found to be in good agreement. Furthermore, the variation with heliocentric distance of C2, C3, and CN model abundances agree well with the observed variation in Comet West. The present work lends detailed support to a previous suggestion that a substance more volatile than water, such as CO2, controls the evaporation of the nucleus of Comet West. The implications for cometary formation are briefly discussed.

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