Electron fluxes and correlations with quiet time auroral arcs

Details Electron fluxes and correlations with quiet time auroral arcs Electron fluxes and correlations with quiet time auroral arcs

Jun 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.2129m&link_type=abstract

Journal of Geophysical Research, vol. 80, June 1, 1975, p. 2129-2136.

Physics

4

Auroral Arcs, Auroral Spectroscopy, Electron Flux Density, Satellite Observation, Atmospheric Radiation, Electron Precipitation, Optical Emission Spectroscopy, Satellite-Borne Photography, Spectrum Analysis

Scientific paper

A description is given of the auroral arcs during the time that quiet-time auroral arcs are photographed from a satellite. Comparison of electron fluxes and optical intensities is presented. It is found that the optical intensities extending from 2100 to 2200 MLT correlate best with electrons above 1 keV, and that the primary auroral electron energy above 200 eV is converted to optical energy in the near-infrared region (0.6-1.0 micron full width at half maximum) with at least a 4-6% efficiency during the auroral event. It is also found that the number of low-energy electrons reflected from the earth approaches that of the precipitated electrons in the vicinity of the auroral arcs.

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