Radio wave heating of the corona and electron precipitation during flares

Details Radio wave heating of the corona and electron precipitation during flares Radio wave heating of the corona and electron precipitation during flares

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259l..41m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 259, Aug. 1, 1982, p. L41-L45.

Physics

56

Electron Precipitation, Masers, Radio Frequency Heating, Solar Corona, Solar Flares, Solar Radio Emission, Cyclotron Radiation, Decimeter Waves, Gyrofrequency, Plasma Heating, Solar Magnetic Field, Solar Physics, Solar X-Rays

Scientific paper

Electron-cyclotron masers, excited while energy release is occurring in a flaring magnetic loop, are likely to generate extremely intense radiation at decimeter wavelengths. The energy in the radiation can be comparable with that in the electrons associated with hard X-ray bursts, i.e., a significant fraction of the total energy in the flare. Essentially all of the radio energy is likely to be reabsorbed by gyroresonance absorption, either near the emitting region or at some distance away in neighboring loops. Enhanced diffusion of fast electrons caused by the maser can lead to precipitation at the maximum possible rate, and hence account for hard X-ray emission from the footpoints of the magnetic loops.

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