The Venus ultraviolet aurora - Observations at 130.4 NM

Details The Venus ultraviolet aurora - Observations at 130.4 NM The Venus ultraviolet aurora - Observations at 130.4 NM

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13.1047p&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, Oct. 1986, p. 1047-1050.

Physics

20

Auroras, Venus Atmosphere, Brightness, Oxygen Atoms, Pioneer Venus 1 Spacecraft, Shock Waves, Solar Planetary Interactions, Ultraviolet Spectra

Scientific paper

Continuous and highly variable emissions at 130.4 nm are observed on the nightside of Venus by the Pioneer Venus Orbiter ultraviolet spectrometer. The emissions have a typical intensity of 10 - 20 R, occasionally exceed 100 R, and have a dawn-dusk asymmetry in brightness during periods of unusual intensity. A possible energy source for this "aurora" is the precipitation of suprathermal electrons. Field and particle observations suggest an additional source for the brightest emissions which is associated with solar flares and/or interplanetary shocks.

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