Chorus-related electrostatic bursts in the earth's outer magnetosphere

Details Chorus-related electrostatic bursts in the earth's outer magnetosphere Chorus-related electrostatic bursts in the earth's outer magnetosphere

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982natur.295...46r&link_type=abstract

Nature, vol. 295, Jan. 7, 1982, p. 46-48. Navy-supported research;

Computer Science

26

Dawn Chorus, Electrostatics, Magnetospheric Instability, Plasma Waves, Frequency Response, International Sun Earth Explorers, Oscillographs, Waveforms

Scientific paper

Studies of wideband plasma wave data from the ISEE 1 and ISEE 2 spacecraft are reported which reveal that whistler-mode chorus emissions in the earth's outer magnetosphere are often accompanied by high-frequency bursts of electrostatic noise. The chorus features that correlate to the electrostatic bursts have a hook-like frequency-time variation in the frequency range 200-400 Hz, and the associated electrostatic bursts have a frequency range of about 4-8 kHz. In some cases these electrostatic bursts have a harmonic frequency structure with a frequency spacing corresponding to the chorus frequency. This harmonic structure apparently results from the fact that the burst intensity is modulated at the chorus frequency.

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