A model of the ionosphere of Titan

Details A model of the ionosphere of Titan A model of the ionosphere of Titan

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9712117k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A8, Aug. 1, 1992, p. 12,117-12,135.

Physics

95

Atmospheric Chemistry, Atmospheric Models, Photochemical Reactions, Planetary Ionospheres, Satellite Atmospheres, Titan, Atmospheric Composition, Ion Production Rates, Ionospheric Ion Density

Scientific paper

A 1D model is developed to study both the composition and density of Titan's structure. Ionization rates due both to photoionization by solar EUV flux and to electron impact ionization by photoelectrons and Saturnian magnetospheric electrons are included. The major neutral species (nitrogen and methane) are ionized to produce N2(+), N(+), CH4(+), CH3(+), CH2(+), and CH(+) ions. The total external pressure upstream of Titan at the time of the Voyager encounter is of the order of the maximum ionospheric thermal pressure. It is argued that the solar wind interaction with Venus during periods of high solar wind dynamic pressure might provide a good analogy for the interaction of Titan with the Saturnian magnetospheric plasma.

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