Physics
Scientific paper
Apr 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.1514l&link_type=abstract
Journal of Geophysical Research, vol. 84, Apr. 1, 1979, p. 1514-1524.
Physics
12
Electron Precipitation, Energy Spectra, Magnetospheric Electron Density, Satellite Observation, Electron Energy, Electron Sources, Explorer Satellites, Neutral Sheets, Pitch (Inclination), Plasma Layers
Scientific paper
An attempt is made to determine the origin of the inverted-V precipitating electrons and mechanisms that could create the inverted-V structure. The energy and pitch angle structures are compared with predictions from several theories that have been proposed to explain the origin of inverted-V events. Data from the AE-D satellite indicate that the origin of the inverted-V precipitating electrons is in the magnetosphere, the most probable regions being the plasma sheet and the neutral sheet. The energy and pitch angle distributions show that electrons are trapped between the mirror points and the electric field potential. The observations suggest that field-aligned precipitating electrons have been heated, probably when they were accelerated by the parallel electric field. Qualitatively, the detailed structures of the inverted-V events favor the theory of anomalous resistivity.
Hoffman Robert A.
Lin Chang-Shou
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