Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...90..713l&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 90, no. 2, p. 713-717
Astronomy and Astrophysics
Astrophysics
3
Dense Plasmas, Electron Acceleration, Energy Transfer, Mathematical Models, Solar Energy, Solar Radio Bursts, Coronal Loops, Electron Density (Concentration), Fokker-Planck Equation, Langmuir Turbulence, Solar Flares, Spectrographs, Synchrotron Radiation
Scientific paper
The paper is devoted to the interpretation of spectrographic data within the frequency range 8-12 GHz. Some spectral characteristics of weak solar steplike radio bursts are reported. To explain some parameters of the emission the ability to keep superthermal electrons in a magnetic trap with dense inhomogeneous plasma is theoretically studied. On the basis of this model we estimate the energy and number of accelerated electrons, and the flux density of precipitating electrons which are the source of enhanced plasma radiation. For the obtained efficiency of electron acceleration the calculated intensity of gyrosynchrotron emission proves to be less than the observed one.
Fridman V. M.
Levin B. N.
Sheiner Olga A.
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