On bremsstrahlung radiation of accelerated electrons in solar flares

被引：3

作者：

Somov, B. V. ^{[1
]}

Gritsyk, P. A. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Sternberg State Astron Inst, Moscow 119991, Russia

来源：

MOSCOW UNIVERSITY PHYSICS BULLETIN | 2012年 / 67卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

X-RAY BREMSSTRAHLUNG; COLLAPSING MAGNETIC TRAPS; REVERSE-CURRENT MODEL; THERMAL ELECTRONS; HARD; POLARIZATION; CURRENTS; SPECTRA;

D O I：

10.3103/S0027134912010195

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have calculated the spectrum and polarization of the bremsstrahlung hard X-ray radiation produced by nonrelativistic electrons that are accelerated during a solar flare. The distribution function of accelerated electrons is taken from the self-consistent solution of the kinetic equation allowing for Coulomb collisions and an electric field of reverse current in plasma. The computed polarization of the hard X-ray polarization is shown to be appreciably lower than the value given by simplified thick-target models without considering the reverse current.

引用

页码：102 / 108

页数：7

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