Computer Science
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ge%26ae..21..693a&link_type=abstract
Geomagnetizm i Aeronomiia, vol. 21, July-Aug. 1981, p. 693-697. In Russian.
Computer Science
Electron Precipitation, Geomagnetism, Ionospheric Heating, Magnetohydrodynamic Waves, Plasma-Particle Interactions, Standing Waves, Electric Fields, Ionospheric Conductivity, Magnetic Field Configurations, Plasma Heating, Plasma-Electromagnetic Interaction, Radio Frequencies, Space Plasmas
Scientific paper
An analysis is presented of the modulation depth of precipitating fluxes in the field of a standing Alfven wave, in the case of modulated heating of the ionosphere. Radial fluctuations (i.e., to and away from the earth) of the geomagnetic flux tube resting on the heated region produce periodic variations of the tube volume. Meanwhile, the particles that fill the tube experience periodic compression and rarefaction, which leads to the modulation of particle fluxes precipitating into the ionosphere. The dependence of the modulation depth of these precipitating particles on the frequency of the modulated heating of the ionosphere is obtained. It is shown that the modulation depth can amount to several percent in the case of the amplitude-modulated radio-frequency heating of the ionosphere.
Arykov A. A.
Maltsev Iu. P.
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