Photochemistry of C2 parent species in cometary comae

Details Photochemistry of C2 parent species in cometary comae Photochemistry of C2 parent species in cometary comae

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1316w&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1316

Computer Science

Scientific paper

The to date most established compositional classification of comets is based on the Haser production rates of C2 and OH or CN. A link between the Haser production rate of C2 and the abundances of realistic parent species in comets is still missing. In this work, a model for photochemistry is used to predict radial column densities of C3 and C2. These predictions are compared to observed column densities. Markov- Chain Monte-Carlo (MCMC) techniques [1] are used to determine the production rates of parent species, and the rates of photochemical reactions required to reproduce the observations. The role of the potential C2 and C3 parent species C3H4, C3H2O, C4H2, C2H6, C2H2, and HC3N are discussed with respect to their role in producing the observed cometary C2.

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