H3(+) in the Jovian ionosphere

Details H3(+) in the Jovian ionosphere H3(+) in the Jovian ionosphere

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.8570m&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Aug. 1, 1987, p. 8570-8578. NSERC-supported research.

Physics

27

Hydrogen Ions, Ionospheric Electron Density, Jupiter Atmosphere, Molecular Ions, Planetary Ionospheres, Recombination Coefficient, Atmospheric Composition, Extreme Ultraviolet Radiation, Molecular Relaxation, Photoionization, Jupiter, Ionosphere, Ions, Theoretical Studies, Vibration, Chemistry, Structure, Solar Radiation, Ultraviolet, Wavelengths, Ionization, Models, Calculations, Plasma, Electrons, Temperature, Spacecraft Observations, Voyager 2 Mission, Hydrogen, Density, Rss Instrument, Lecp Instrument

Scientific paper

Calculative results on the effect of differing recombination rates for ground state and excited state H3(+) are used here to study the impact of modified H3(+) chemistry on the structure of the Jovian ionosphere for both a solar EUV ionization source and a high-altitude ionization source associated with the electroglow. It is found that H3(+) is a major component of the upper ionosphere for all values of the recombination coefficient less than or equal to the experimental upper limit. Thus, the calculations suggest that the topside plasma scale height measured by radio science experiments may be indicative of electron temperatures of 3000-5000 K or greater, consistent with current models for calculating electron temperature.

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