Hot carbon densities in the exosphere of Mars | Zendy

Nagy Andrew F. | Zendy; Liemohn Michael W. | Zendy; Fox J. L. | Zendy; Kim Jhoon | Zendy

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Hot carbon densities in the exosphere of Mars

Author(s) -

Nagy Andrew F.,

Liemohn Michael W.,

Fox J. L.,

Kim Jhoon

Publication year - 2001

Publication title -

journal of geophysical research: space physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/2001ja000007

Subject(s) - exosphere , mars exploration program , dissociative recombination , hot atom , carbon fibers , atmosphere (unit) , astrobiology , carbon monoxide , atomic carbon , physics , atmospheric escape , oxygen , astrophysics , atomic physics , atmospheric sciences , materials science , computational physics , recombination , hydrogen , chemistry , thermodynamics , ion , quantum mechanics , composite number , composite material , biochemistry , catalysis , gene

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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