Ring current H atom precipitation on the outer planets

Details Ring current H atom precipitation on the outer planets Ring current H atom precipitation on the outer planets

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..20..233b&link_type=abstract

Advances in Space Research, vol. 20, p. 233

Physics

2

Saturn Atmosphere, Ring Currents, Hydrogen Atoms, Uranus Atmosphere, Neutral Gases, Particle Precipitation, Charge Exchange, Charged Particles, Voyager Project, Energetic Particles

Scientific paper

The extended neutral gas corona observed by Voyager on Saturn and Uranus suggests charge-exchange loss of energetic charged particles of the ring current. This could in turn generate energetic and dynamic effects in the planetary upper atmospheres through precipitation. An evaluation is conducted of the significance of such a process to the production of H Lyman-alpha, H-alpha, H-beta, and H2 band emissions from these planets; the importance of the mechanism is noted for the case of optically thin H Lyman-alpha emissions.

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