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Nonlinear Evolution of Counter-Propagating Whistler Mode Waves Excited by Anisotropic Electrons Within the Equatorial Source Region: 1-D PIC Simulations
Chen, Huayue; Gao, Xinliang; Lu, Quanming; Sun, Jicheng; Wang, Shui
作者部门空间科学部
2018
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN2169-9380
卷号123期号:2页码:1200-1207
摘要Nonlinear physical processes related to whistler mode waves are attracting more and more attention for their significant role in reshaping whistler mode spectra in the Earth's magnetosphere. Using a 1-D particle-in-cell simulation model, we have investigated the nonlinear evolution of parallel counter-propagating whistler mode waves excited by anisotropic electrons within the equatorial source region. In our simulations, after the linear phase of whistler mode instability, the strong electrostatic standing structures along the background magnetic field will be formed, resulting from the coupling between excited counter-propagating whistler mode waves. The wave numbers of electrostatic standing structures are about twice those of whistler mode waves generated by anisotropic hot electrons. Moreover, these electrostatic standing structures can further be coupled with either parallel or antiparallel propagating whistler mode waves to excite high-k modes in this plasma system. Compared with excited whistler mode waves, these high-k modes typically have 3 times wave number, same frequency, and about 2 orders of magnitude smaller amplitude. Our study may provide a fresh view on the evolution of whistler mode waves within their equatorial source regions in the Earth's magnetosphere.
项目资助者Specialized Research Fund for State Key Laboratories ; Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-DQC010] ; NSFC [41331067, 41604128, 41631071, 41774151] ; Youth Innovation Promotion Association of Chinese Academy of Sciences [2016395]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6245
专题空间科学部
通讯作者Chen, Huayue; Gao, Xinliang; Lu, Quanming; Sun, Jicheng; Wang, Shui
推荐引用方式
GB/T 7714
Chen, Huayue,Gao, Xinliang,Lu, Quanming,et al. Nonlinear Evolution of Counter-Propagating Whistler Mode Waves Excited by Anisotropic Electrons Within the Equatorial Source Region: 1-D PIC Simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2018,123(2):1200-1207.
APA Chen, Huayue,Gao, Xinliang,Lu, Quanming,Sun, Jicheng,&Wang, Shui.(2018).Nonlinear Evolution of Counter-Propagating Whistler Mode Waves Excited by Anisotropic Electrons Within the Equatorial Source Region: 1-D PIC Simulations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,123(2),1200-1207.
MLA Chen, Huayue,et al."Nonlinear Evolution of Counter-Propagating Whistler Mode Waves Excited by Anisotropic Electrons Within the Equatorial Source Region: 1-D PIC Simulations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123.2(2018):1200-1207.
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