The ionosphere and airglow of Venus - Prospects for Pioneer Venus

Details The ionosphere and airglow of Venus - Prospects for Pioneer Venus The ionosphere and airglow of Venus - Prospects for Pioneer Venus

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978georl...5..613c&link_type=abstract

Geophysical Research Letters, vol. 5, July 1978, p. 613-616.

Physics

1

Airglow, Atmospheric Physics, Ionospheric Composition, Pioneer Space Probes, Planetary Ionospheres, Venus Atmosphere, Atmospheric Models, Daytime, Ionospheric Ion Density, Night Sky, Vertical Distribution, Atmosphere, Airglow, Venus, Ionosphere, Pioneer Venus, Emissions, Electrons, Ions, Flux, Ultraviolet, Models

Scientific paper

The paper presents model calculations for the Cytherean nighttime and daytime ionosphere. It is shown how some of the proposed mechanisms can be tested with the aid of the Pioneer Venus observations scheduled for December 1978. Theoretical calculations of the energetics of the Cytherean ionosphere are performed, and it is concluded that the Project Venus measurements will find elevated ion and electron temperatures, resulting primarily from energy fluxes associated in some manner with the solar wind. According to this model, the energy flux will act directly on the ion gas. Ultraviolet dayglow intensities were calculated, and it is anticipated that hundreds of kR's of CO2-related emission features such as the CO Cameron bands will be observed. Nightside ionosphere calculations were made assuming the precipitation of energetic electrons as an ionization source, and the intensities of some of the resulting emission features are calculated.

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