HR: 0800h
AN: SH12A-0856    [Abstracts]
TI: Hydrogen and Oxygen Hot Ion Precipitation in the Martian Ionosphere
AU: * Parkinson, C D
EM: theshire@umich.edu
AF: University of Michigan, AOSS Dept., 2455 Hayward St., Ann Arbor, MI 48109-2143, United States
AU: Liemohn, M
EM: liemohn@umich.edu
AF: University of Michigan, AOSS Dept., 2455 Hayward St., Ann Arbor, MI 48109-2143, United States
AU: Fang, X
EM: xhfang@umich.edu
AF: University of Michigan, AOSS Dept., 2455 Hayward St., Ann Arbor, MI 48109-2143, United States
AB: High energy H/H+ ion precipitation into Earth's upper atmosphere has previously been modeled (Fang et al., 2006, 2004). Recently, we have extended this work for the Martian ionosphere using different cross sections for relevant Martian "background" species. Additionally, we have included O+/O precipitation with the view to keeping track of secondary hot ions/neutrals, which are important for sputtering in the Martian upper atmosphere. Atmospheric effects of these precipitating hot ions in the Martian atmosphere are studied and reported on.
DE: 2427 Ionosphere/atmosphere interactions (0335)
DE: 2431 Ionosphere/magnetosphere interactions (2736)
DE: 2455 Particle precipitation
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting