Astronomy and Astrophysics – Astronomy
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994p%26ss...42..435i&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 42, no. 5, p. 435-440
Astronomy and Astrophysics
Astronomy
6
Astronomical Models, Atmospheric Models, Interplanetary Magnetic Fields, Mars Atmosphere, Planetary Magnetospheres, Plasma Interactions, Proton Flux Density, Solar Planetary Interactions, Solar Wind, Flow Distribution, Halley'S Comet, Mars Exploration, Mathematical Models
Scientific paper
One striking observation made during the Phobos-2 mission concerns the existence of a well-defined plasma boundary where the solar wind proton flux terminates. Different mechanisms have been proposed to explain this interesting new feature. In the present study, we explore the possible influence of charge exchange on the loss of solar wind protons in the Martian exosphere as the reason of such a composition boundary. Unlike the cometary interaction, the charge exchange process is effective only in the vicinity of the subsolar point of the Martian 'magnetopause' where the streamlines cross the dense neutral atmosphere. The most recent model of the Martian upper atmosphere and the flow field obtained by numerical simulation are used to provide the basis for such a scenario.
Breus Tamara K.
Huen Ip Wing
Żarnowiecki T.
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