A new look at the ionosphere of Jupiter in light of the UVS occultation results

Details A new look at the ionosphere of Jupiter in light of the UVS occultation results A new look at the ionosphere of Jupiter in light of the UVS occultation results

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982p%26ss...30..151m&link_type=abstract

Planetary and Space Science, vol. 30, Feb. 1982, p. 151-167. NASA-supported research;

Computer Science

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43

Ionospheric Electron Density, Ionospheric Sounding, Jupiter Atmosphere, Planetary Ionospheres, Ultraviolet Spectroscopy, Atmospheric Circulation, Radio Occultation, Vertical Distribution, Vertical Motion, Voyager 1 Spacecraft, Voyager 2 Spacecraft, Jupiter, Ionosphere, Ultraviolet, Wavelengths, Radio Occultations, Ions, Electrons, Density, Atmosphere, Models, Vertical Transport, Particles, Winds, Electric Fields, Precipitation, Temperature, Magnetosphere, Data, Pioneer 1, Pioneer 11, Voyager 1, Voyager 2, P

Scientific paper

Neutral model atmospheres derived from the Voyager UV Spectrometer's solar and stellar occultation data are used to calculate Jupiter ionospheric electron density profiles, demonstrating the inadequacy of such methods. It is also shown that electron densities calculated by means of standard parameters are larger than those measured by both Pioneer and Voyager. McElroy's (1973) suggestion as to the importance of H2 vibrational excitation is investigated, and it is found that no single vibrational temperature is appropriate for the entire thermosphere. The long recombination time constants involved in the plasma's movement, due to either meridional winds or electric fields, through large vertical distances, is shown to account for the observed electron density profiles. It is suggested that the outflow, and possibly the inflow, of plasma may play a role in the definition of electron density profiles.

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