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Efficiency for Electron Acceleration in Solar Energy Release Region as Estimated in the Context of Plasma Mechanism of Radio Emission

Published online by Cambridge University Press:  12 April 2016

B. N. Levin ,
V. M. Fridman  and
O. A. Sheiner
B. N. Levin
Affiliation:
Radiophysical Research Institute (NIRFI), B. Pecherskaya (Lydov.) str., 2S/14, 603600, Nizhny Novgorod, Russia
V. M. Fridman
Affiliation:
Radiophysical Research Institute (NIRFI), B. Pecherskaya (Lydov.) str., 2S/14, 603600, Nizhny Novgorod, Russia
O. A. Sheiner
Affiliation:
Radiophysical Research Institute (NIRFI), B. Pecherskaya (Lydov.) str., 2S/14, 603600, Nizhny Novgorod, Russia

Abstract

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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.

Subject headings: acceleration of particles — radiation mechanisms: nonthermal — Sun: flares — Sun: radio radiation

Type
Poster Papers
Information
International Astronomical Union Colloquium , Volume 142: Particle Acceleration Phenomena in Astrophysical Plasmas , 1994 , pp. 713 - 717
Copyright
Copyright © The American Astronomical Society 1994

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