Hot carbon densities in the exosphere of Mars

Details Hot carbon densities in the exosphere of Mars Hot carbon densities in the exosphere of Mars

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jgr...10621565n&link_type=abstract

Journal of Geophysical Research, Volume 106, Issue A10, p. 21565-21568

Physics

16

Ionosphere: Planetary Ionospheres, Planetology: Solid Surface Planets: Atmospheres-Composition And Chemistry, Planetology: Solid Surface Planets: Atmospheres-Evolution, Planetology: Solid Surface Planets: Ionospheres

Scientific paper

Theoretical results of hot carbon densities in the exosphere of Mars are presented. The calculation is a two-step process: First a two-stream transport code is used to solve for the distribution function at the exobase, and then these results are used in a Liouville equation solution above the exobase. It is found that photodissociation of carbon monoxide is the largest source of hot carbon atoms in the upper atmosphere of Mars, larger than dissociative recombination of CO+ and much larger than the creation of hot carbon through collisions with hot oxygen atoms. It is also found that the high solar activity densities are about an order of magnitude larger than those for the low solar activity case.

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