Solar wind absorption by Venus

Details Solar wind absorption by Venus Solar wind absorption by Venus

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.7747g&link_type=abstract

Journal of Geophysical Research, vol. 85, Dec. 30, 1980, p. 7747-7753.

Physics

1

Venus, Solar Wind, Absorption, Dayside, Ionosphere, Atmosphere, Ions, Calculations, Parameters, Monte Carlo Methods, Ionopause, Altitude, Flow, Magnetic Fields, Structure, Particles, Ionosheath, Velocity, Escape

Scientific paper

The portion of solar wind interacting with the dayside ionosphere and atmosphere of Venus was determined based on magnetic field fluctuations in the ionosheath and the interaction with the upper neutral atmosphere above the ionopause. Fluctuations with the ratio of the number of particles intersecting the daytide ionopause to the total number of particles of 0.3 suggest that about 0.3% of solar wind may be absorbed. Most of fast H atoms resulting from the charge exchange interactions with the atmosphere escape; some of the energy deposition processes produce observable signatures (such as a narrow Lyman alpha emission region), but penetrating solar wind particles do not control the physical and/or chemical structure of the daytime Venus ionosphere.

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