Physics
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981georl...8.1265g&link_type=abstract
Geophysical Research Letters, vol. 8, Dec. 1981, p. 1265-1268. Research supported by the Hungarian Intercosmos Council and Magya
Physics
25
Charge Exchange, Planetary Ionospheres, Plasma Interactions, Solar Wind, Venus Atmosphere, Atmospheric Attenuation, Atmospheric Models, Daytime, Dynamic Pressure, Venus, Solar Wind, Absorption, Dayside, Ionosheath, Altitude, Plasmas, Charged Particles, Ions, Interactions, Magnetic Properties, Ionopause, Pressure, Mathematical Models, Flow, Data, Exosphere, Magnetic Fields
Scientific paper
The amount of solar wind absorbed because of charge exchange processes in the dayside ionosheath of Venus is calculated. The calculations suggest the existence of a lower limiting ionopause altitude, below which all solar wind particles are removed from the flow by charge exchange. The cold, slow ions resulting from this interaction are thought to play an important role in building the magnetic barrier observed just outside the ionopause and in creating the dayside 'mantle' and downstream 'penumbra' regions. The total absorption caused by charge exchange is typically 2-5%, although when the solar wind dynamic pressure is very high, it can reach 16%.
Cravens Thomas E.
Gombosi Tamas
Horanyi Mihaly
Nagy Andrew F.
Russell Christopher T.
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