Thermal and nonthermal escape mechanisms for terrestrial bodies

Details Thermal and nonthermal escape mechanisms for terrestrial bodies Thermal and nonthermal escape mechanisms for terrestrial bodies

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982p%26ss...30..773h&link_type=abstract

(IAU, IAMAP, and COSPAR, Joint Meeting on the Origin and Evolution of Planetary Atmospheres, Hamburg, West Germany, Aug. 17, 18,

Other

59

Jeans Theory, Outgassing, Planetary Atmospheres, Satellite Atmospheres, Terrestrial Planets, Thermal Energy, Atmospheric Chemistry, Atmospheric Diffusion, Charge Exchange, Chemical Fractionation, Dissociation, Ionic Reactions, Photochemical Reactions, Recombination Reactions, Sputtering

Scientific paper

A survey is given of the classical thermal escape (Jeans or blowoff) and some eight nonthermal processes involving ions. Diffusional, energetic, and other limitations on the escape flux are discussed. Isotopic fractionation, due to differences in thermal escape rates or diffusive separation, is considered. The dominant processes acting at the five terrestrial planets and six major satellites are summarized. In general, nonthermal processes dominate over the classic thermal ones.

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