Physics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9611609h&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, July 1, 1991, p. 11,609-11,615.
Physics
19
Electron Acceleration, Ionospheric Electron Density, Plasma-Particle Interactions, Electric Fields, Ion Motion, Viking Spacecraft
Scientific paper
The dependence of the generation of upward electron beams in the topside ionosphere on the amplitude of the slow electric field fluctuations and the magnitude of the dc potential difference in the acceleration region is found to agree with the model involving the fluctuating electric field component presented by Hultqvist (1988). The ratio between the amplitude of the electric field fluctuations determined by the dipole electric field experiment and the dc acceleration voltage given by the energy of the upflowing ion beam is much higher on average for satellite spins showing an upward electron beam than for the spins without. It is also shown that low plasma density favors the generation of electron beams.
Aparicio Bruno
Hultqvist Bengt
Lindqvist Per-Arne
Lundin Rickard
Vo Hien
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