Physics
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.2785b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, March 1, 1985, p. 2785-2791.
Physics
14
Auroral Zones, Coherent Electromagnetic Radiation, Earth Magnetosphere, Kilometric Waves, Wave Interaction, Solitary Waves, Whistlers
Scientific paper
Generation of electromagnetic radiations from the nonlinear interaction of whistler solitons with the upper hybrid waves is investigated. The power emitted from the right-hand polarized fundamental whistler sideband of upper hybrid frequency is obtained. The results are applied to the generation of auroral kilometric radiations (AKR) on the auroral field lines in the earth's magnetosphere. The power is found to be larger in the plasma depletion region as compared to high-density region. It is found that about 1000-10,000 whistler solitons filling a volume of less than about 400 million/cu km in a region of field-aligned auroral cavity can generate the observed AKR power of a billion W. Theoretical predictions agree very well with the observed properties of AKR, e.g., frequency range, polarization, peak power and its tendency to occur in the density depletion regions.
Buti B.
Lakhina Gurbax S.
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