Hot hydrogen in the exosphere of Venus

Details Hot hydrogen in the exosphere of Venus Hot hydrogen in the exosphere of Venus

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.283..178c&link_type=abstract

Nature, vol. 283, Jan. 10, 1980, p. 178-180.

Computer Science

8

Hydrogen Atoms, Venus Atmosphere, Density Distribution, Distribution Functions, Energy Distribution, Pioneer Venus 1 Spacecraft, Venus, Exosphere, Hydrogen, Models, Corona, Pioneer Venus Orbiter, Density, Maxwell Distribution, Nightside, Dayside, Distance, Flux, Comparisons, Mariner 5, Mariner 10, Venera 9, Lyman-Alpha Radiation, Ions, Production Rate, Collisions, Energy, Ionosphere

Scientific paper

Lyman-alpha measurements of the hydrogen corona of Venus by Mariners 5 and 10 have been shown to be consistent with a two-temperature component model. Bertaux et al. (1978) have successfully fitted the Venera 9 exospheric Lyman-alpha data to an elevated (500 K) single temperature. Various source mechanisms have been proposed to explain the 'hot' (1000 K) energetic component of the hydrogen corona. In the present paper recent results from the Pioneer Venus Orbiter are used to establish the major sources of this hot hydrogen population.

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