Solar Heating of Titan's Ionosphere

Details Solar Heating of Titan's Ionosphere Solar Heating of Titan's Ionosphere

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p21b..05g&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #P21B-05

Physics

2479 Solar Radiation And Cosmic Ray Effects, 5729 Ionospheres (2459), 6280 Saturnian Satellites

Scientific paper

Titan's flybys by the Cassini orbiter provide a crucial and unique dataset on composition and temperature of Titan's ionosphere. Solar irradiance is a major energy source for Titan's upper atmosphere. The suprathermal electrons induced by photoionization are a significant heating source of Titan's ionosphere. In order to estimate the photoelectron heating on the ambient electron population, we have coupled a multi-stream electron transport model with an ionospheric model. The latter solves the continuity equation for the ionospheric and minor neutral species as well as the electron energy equation. We will assess the effect of photoelectrons on the ionospheric electron temperature within the context of the first Titan flyby by the Cassini orbiter.

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