Physics
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9212295e&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Nov. 1, 1987, p. 12295-12306. Research supported by the Lockheed Inde
Physics
15
Auroral Spectroscopy, Electron Energy, Electron Precipitation, Electron Spectroscopy, Energetic Particles, Pulses, Particle Precipitation, Time Dependence
Scientific paper
An analysis of electron spectra in pulsating aurorae was undertaken using data from instruments on the NOAA 6 satellite and the Stimulated Emission of Energetic Particles experiment on satellite S81-1. The possible contribution of the backscatter to the total electron population observed above morningside pulsating aurorae is estimated. A time-dependent model for backscatter in the presence of a regularly modulated primary precipitation at high energies is constructed. In this model, the temporal modulation of the primary electron precipitation is restricted to energies above several kiloelectronvolts in accordance with observations. The lower-energy precipitation, observed at both the maximum and minimum of the pulsation cycle, arises because of backscatter produced in the conjugate atmosphere in earlier cycles of the pulsations.
Davidson Gerald T.
Evans Silvan D.
Imhof William L.
Mobilia Joseph
Voss Henry D.
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