Electron cooling by excitation of carbon dioxide

Details Electron cooling by excitation of carbon dioxide Electron cooling by excitation of carbon dioxide

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jgr....83.1172m&link_type=abstract

Journal of Geophysical Research, vol. 83, Mar. 1, 1978, p. 1172-1174. ERDA-sponsored research.

Physics

5

Carbon Dioxide, Electron Energy, Electron Scattering, Energy Transfer, Mars Atmosphere, Molecular Excitation, Venus Atmosphere, Atmospheric Models, Electron Gas, Molecular Oscillations, Vibration Mode

Scientific paper

The cooling of a heated electron gas by electron impact excitation of CO2 is believed to be an important process in the neutral atmospheres of Mars and Venus. Electron energy loss rates are calculated for a variety of excitation processes as a function of electron temperature at a CO2 gas temperature of 200 K. Vibrational excitation is found to be the most efficient cooling mechanism for the range of electron temperatures studied. The contributions of various vibrational energy loss processes to electron cooling are discussed.

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