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题名: SOLAR TYPE III RADIO BURSTS MODULATED BY HOMOCHROMOUS ALFVEN WAVES
作者: Zhao, G. Q.1, 2; Chen Ling(陈玲)1; Wu, D. J.1
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2013-12-10
卷号: 779, 期号:1
关键词: plasmas ; radiation mechanism: non-thermal ; Sun: radio radiation
DOI: 10.1088/0004-637X/779/1/31
文章类型: Article
英文摘要: Solar type III radio bursts and their production mechanisms have been intensively studied in both theory and observation and are believed to be the most important signatures of electron acceleration in active regions. Recently, Wu et al. proposed that the electron-cyclotron maser emission (ECME) driven by an energetic electron beam could be responsible for producing type III bursts and pointed out that turbulent Alfven waves can greatly influence the basic process of ECME via the oscillation of these electrons in the wave fields. This paper investigates effects of homochromous Alfven waves (HAWs) on ECME driven by electron beams. Our results show that the growth rate of the O-mode wave will be significantly modulated by HAWs. We also discuss possible application to the formation of fine structures in type III bursts, such as so-called solar type IIIb radio bursts.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: ELECTRON-CYCLOTRON MASER ; DIRECT AMPLIFICATION ; INTERPLANETARY PLASMA ; HYDROMAGNETIC WAVES ; WIND TURBULENCE ; CORONAL LOOPS ; EMISSION ; INSTABILITY ; POWER ; EXPLANATION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000328160100031
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15521
Appears in Collections:太阳和太阳系等离子体研究团组_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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