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Please use this identifier to cite or link to this item: http://hdl.handle.net/2328/2963

Title: Electron cooling by carbon monoxide in the atmospheres of Mars and Venus
Authors: Campbell, Laurence
Brunger, Michael James
Keywords: Molecular excitation and ionization
Issue Date: 4-Feb-2008
Publisher: BioMed Central - http://www.biomedcentral.com
Citation: Campbell, L. and Brunger, M. 2008 Electron cooling by carbon monoxide in the atmospheres of Mars and Venus PMC Physics B, 1:3
Abstract: Electron cooling, in which free electrons lose energy to vibrational excitation of gases, has been identified as a significant process in the atmospheres of Mars and Venus for electron impact on CO2. This process does not appear to have been evaluated for CO, although the density of CO exceeds that of CO2 in the upper atmospheres of these planets. In this paper electron cooling rates for CO are calculated and compared with existing rates for CO2. It is found that electron cooling by CO becomes more significant than by CO2 above altitudes of about 300 km on Mars and about 168 km on Venus. The sensitivity of the calculated cooling rates to different measurements of the integral cross sections for electron-impact vibrational excitation of CO is also investigated.
Description: PACS Codes: 34.80.Gs, 96.12.Jt
URI: http://hdl.handle.net/2328/2963
ISSN: 1754-0429
Appears in Collections:Laurence Campbell

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