Interpretation of solar microwave-burst spectra

Details Interpretation of solar microwave-burst spectra Interpretation of solar microwave-burst spectra

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976azh....53..130k&link_type=abstract

Astronomicheskii Zhurnal, vol. 53, no. 1, 1976, p. 130-139. In Russian.

Astronomy and Astrophysics

Astronomy

3

Emission Spectra, Microwave Spectra, Solar Radio Bursts, Solar Spectra, Electromagnetic Absorption, Electron Density (Concentration), Frequency Response, Solar Magnetic Field

Scientific paper

The effect of physical conditions in source regions of solar microwave bursts on the frequency spectrum of such bursts is considered. Emission spectra of sources with different magnetic-field distributions are computed using an approximation for gyrosynchrotron emission from isotropically distributed electrons with a power-law energy spectrum and kinetic energies ranging from 20 to 200 keV. It is suggested that emission at low harmonics experiences strong absorption, and it is shown that the space distribution of emitting particles affects the spectra in the case of a nonuniform magnetic field. These findings can explain the large variety observed in microwave-burst spectra.

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