Electron impact ionization in the Martian ionosphere

Details Electron impact ionization in the Martian ionosphere Electron impact ionization in the Martian ionosphere

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..899..549d&link_type=abstract

SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION. AIP Conference Proceedings, Volume 899, pp. 549-549 (2007).

Physics

Mars, Ionospheres

Scientific paper

A number of distinct hot plasma flux tubes are detected in the Martian ionosphere, primarily formed when the magnetospheric plasma is magnetically connected to the upper ionosphere. The electron reflectometer measurements have shown that magnetospheric electrons are sometimes observed not only close to the ionopause, but at low altitudes (<200 Km) as well. These elections are able to interact with neutrals from the upper atmosphere of the planet, leading to intense electron impact ionization. A first order estimation of the impact ionization rate locally imposed by the flux tubes was carried out for two different altitudes (160 and 180 Km). The result indicates that such a wide electron flow network within the martian ionosphere could be a significant ion supplier for the dark side, possibly adequate to support a night Martian ionosphere.

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