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题名: Parametric Instabilities of Parallel Propagating Circularly Polarized Alfven Waves: One-Dimensional Hybrid Simulations
作者: He Peng1; Gao Xin-Liang1; Lu Quan-Ming1; Zhao JinSong(赵金松)2
刊名: CHINESE PHYSICS LETTERS
出版日期: 2015-11-01
卷号: 32, 期号:11
DOI: 10.1088/0256-307X/32/11/115202
文章类型: Article
英文摘要: By performing one-dimensional (1-D) hybrid simulations, we analyze in detail the parametric instabilities of the Alfven waves with a spectrum in a low beta plasma. The parametric instabilities experience two stages. In the first stage, the density modes are excited and immediately couple with the pump Alfven waves. In the second stage, each pump Alfven wave decays into a density mode and a daughter Alfven mode similar to the monochromatic cases. Furthermore, the proton velocity beam will also be formed after the saturation of the parametric instabilities. When the plasma beta is high, the parametric decay in the second stage will be strongly suppressed.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: FINITE-AMPLITUDE ; SOLAR-WIND ; MODULATIONAL INSTABILITY ; DECAY INSTABILITIES ; STABILITY ; SHOCKS
收录类别: SCI
项目资助者: National Natural Science Foundation of China(41331067 ; National Basic Research Program of China(2013CBA01503 ; Key Research Program of Chinese Academy of Sciences(KZZD-EW-01-4) ; 41474125 ; 2012CB825602) ; 41274144 ; 41174124 ; 41121003)
语种: 英语
WOS记录号: WOS:000365178900021
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16053
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.Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
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