Observations of low-energy electrons from AE-C in the south polar cusp during the geomagnetic storm of September 21, 1977

Details Observations of low-energy electrons from AE-C in the south polar cusp during the geomagnetic storm of September 21, 1977 Observations of low-energy electrons from AE-C in the south polar cusp during the geomagnetic storm of September 21, 1977

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ssrv...22..659p&link_type=abstract

(ESA, ESLAB Symposium on Advances in Magnetospheric Physics with GEOS-1 and ISEE-1 and 2, 13th, Innsbruck, Austria, June 5-7, 19

Physics

Electron Precipitation, Explorer Satellites, Magnetic Storms, Polar Cusps, Polar Regions, Southern Hemisphere, Electron Energy, Photoelectron Spectroscopy, Satellite-Borne Instruments

Scientific paper

The present paper deals with the characteristics of low-energy electrons measured onboard the Atmosphere Explorer C (AE-C) satellite above the south polar cusp during the intense geomagnetic storm of September 21, 1977. The low-energy electron fluxes measured with the Photoelectron Spectrometer experiment indicate that the dayside polar cusp was displaced down to 69-72 deg invariant latitude during the storm. A region of intense fluxes of precipitating electrons was observed in the region near 1700 MLT between 66 and 69 deg invariant latitude, which statistically coincides with that of ascending field-alignment currents in the disturbed afternoon auroral region.

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