Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p21f..05m&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #P21F-05
Physics
2780 Solar Wind Interactions With Unmagnetized Bodies, 5405 Atmospheres: Composition And Chemistry, 5409 Atmospheres: Structure And Dynamics, 5443 Magnetospheres (2756)
Scientific paper
We have improved our recently published 3D global MHD model of Mars(Ma et al., 2004) by incorporating the global variation of the neutral densities, using the appropriate Mars TGCM results. We also improved on the Chapman approximation used in our earlier model and now use appropriate optical depth values in calculating the ionization rates. In this paper we present results from this improved model and compare them with Viking and MGS observations. Finally in order to evaluate the importance of charge exchange and impact ionization on the interaction between the solar wind and Mars, we made calculations both including and neglecting these two processes and compare these results.
Bougher Stephen
Hansen Kenneth Calvin
Ma Yi
Nagy Andrew F.
Sokolov Igor V.
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