Rocket observations of precipitating electrons over a pulsating aurora

Details Rocket observations of precipitating electrons over a pulsating aurora Rocket observations of precipitating electrons over a pulsating aurora

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7..309s&link_type=abstract

Geophysical Research Letters, vol. 7, May 1980, p. 309-312. Research supported by the Swedish Board for Space Activities.

Physics

16

Auroras, Electron Energy, Electron Precipitation, Flux (Rate), Geos Satellites (Esa), Electrostatic Probes, Periodic Variations, Rocket-Borne Instruments, Solid State Devices

Scientific paper

Data from the third rocket of the Substorm-GEOS series have been studied. The rocket was launched from ESRANGE on January 27, 1979 at 21:52:20 UT into a pulsating aurora. Measurements were performed in the energy range 0-33 keV with electrostatic analyzers and above 48 keV with solid state detectors. The pulsations are visible in the data above 3-4 keV. In a pulsation maximum the bulk of the energy flux is carried by electrons of energies between 5 and 40 keV. In pulsation minima the bulk of the energy flux is carried by particles of lower energies. In the electron fluxes above 25 keV a modulation of about 3 Hz is seen in the loss cone. This modulation is seen only in pulsation maxima and the modulation depth increases with increasing energy.

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