Impulsive plasma waves observed by DE 1 in nightside magnetosphere

Details Impulsive plasma waves observed by DE 1 in nightside magnetosphere Impulsive plasma waves observed by DE 1 in nightside magnetosphere

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.3779o&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, April 1, 1989, p. 3779-3784.

Physics

5

Dynamics Explorer 1 Satellite, Earth Magnetosphere, Night Sky, Plasma Waves, Space Plasmas, Dawn Chorus, Electron Bunching, Extremely Low Frequencies, Hiss, Kp Index, Satellite Antennas, Wave Generation

Scientific paper

Wide-band electric field data received from DE 1 at Kashima station in Japan were studied via frequency-time spectral analysis. Impulsive plasma waves were observed at low geomagnetic latitudes in the outer magnetosphere around 0200 MLT during a geomagnetic quiet time on July 30, 1986, and also in the middle magnetosphere around 2300 MLT during a geomagnetic disturbed time on September 12, 1986. Impulsive plasma waves without strong narrow-band ELF hiss observed outside the plasmapause may be attributed to electrons bunched by a weak ELF hiss band in a nearby region or to space discharges occurring around the 200-m wire antenna on the DE 1 spacecraft.

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