Statistics – Computation
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p11a1250k&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #P11A-1250
Statistics
Computation
0325 Evolution Of The Atmosphere (1610, 8125), 0328 Exosphere
Scientific paper
Collisions of energetic H and D atoms with the thermalized H and O atmospheric gas are investigated. Accurate potential energy surfaces for H + H and H + O interaction are used in our quantum mechanical computations of the differential and total cross-sections of elastic collisions of hydrogen atoms. Collisions of hydrogen isotopes are also investigated. Simplified fitting formulas, describing general features of calculated collisional cross-sections, are discussed. Energy spectra of the secondary energetic atoms produced in recoil collisions are calculated. Rates of the momentum and energy relaxation of energetic H atoms are computed for collisional energies between 0.01eV and 10 keV. Energy relaxation of energetic H atoms produced in the charge-exchange collisions of solar wind ions in the upper Martian atmosphere is analyzed. Impact of H + H and H + O collisions on a formation of the escape flux of hydrogen atoms and their isotopes is investigated.
Dalgarno Alexander
Kharchenko Vasili
Zhang Pei-Pei
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