On theories of solar type III radio bursts

被引：7
|
作者：
Wu ChingSheng [1 ]
机构：
[1] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2012年 / 57卷 / 12期
基金：
中国国家自然科学基金;
关键词：
solar radiophysics; type III bursts; plasma hypothesis; electron cyclotron maser mechanism; DIRECT AMPLIFICATION; LOW CORONA; GENERATION; EMISSION; DENSITY;
D O I：
10.1007/s11434-012-5061-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In solar radiophysics, many theories for type Ill bursts have been proposed during the past 60 years. Almost all these theories are based on the plasma hypothesis, which assumes that (i) the radiation is mainly generated by Langmuir waves via nonlinear processes and (ii) the radiation has frequencies close to the local plasma frequency and/or its second harmonic in the source region. We feel strongly that it is time to advocate an alternative approach without recourse to the plasma hypothesis. This brief discussion explains why.
引用
收藏
页码：1357 / 1361
页数：5
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