Physics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9611097j&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, July 1, 1991, p. 11,097-11,118.
Physics
12
Mars Atmosphere, Planetary Ionospheres, Viking Lander 1, Electron Density Profiles, Spacecraft Trajectories
Scientific paper
An analysis of the electron mode sweeps made by Viking 1 above the Martian ionosphere is presented. The initial electron concentrations near 15,000 km were slightly less than 1/cu cm and were characterized by a temperature of about 40,000 K and by what is interpreted as a backstreaming component from the planetary shock of about 0.1/cu cm at about 250,000 K. The shock appeared to be quasi-parallel. The hottest region was near 850 km, and is assumed to be characterized by energies of about 200 eV.
Hanson William B.
Johnson Francis S.
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