Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities

	Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities
	Jun, Guo
刊名	PLASMA PHYSICS AND CONTROLLED FUSION
	2011
卷号	53 期号:8 页码:85030
ISSN号	0741-3335
通讯作者	Jun, G (reprint author), Qingdao Univ Sci & Technol, Coll Math & Phys, Qingdao 266042, Peoples R China.
中文摘要	A one-dimensional electromagnetic particle-in-cell simulation is performed to study wave excitation due to an isotropic electron beam in a plasma system. The waves excited by the electron beam are analysed with the fast Fourier transformation and the wavelet transformation. The results show that the isotropic beam electrons can excite the whistler and the Langmuir instabilities. Also, the strong damping of whistler modes due to the emergence of electrostatic waves together with the appearance of temperature anisotropy in the electron beam can be found. Furthermore, the velocity distributions indicate that beam electrons are heated in the direction parallel to the ambient magnetic field. The background electrons still exhibit an isotropic velocity distribution, which is different from that of the beam electrons.
英文摘要	A one-dimensional electromagnetic particle-in-cell simulation is performed to study wave excitation due to an isotropic electron beam in a plasma system. The waves excited by the electron beam are analysed with the fast Fourier transformation and the wavelet transformation. The results show that the isotropic beam electrons can excite the whistler and the Langmuir instabilities. Also, the strong damping of whistler modes due to the emergence of electrostatic waves together with the appearance of temperature anisotropy in the electron beam can be found. Furthermore, the velocity distributions indicate that beam electrons are heated in the direction parallel to the ambient magnetic field. The background electrons still exhibit an isotropic velocity distribution, which is different from that of the beam electrons.
学科主题	空间物理
收录类别	SCI ; EI
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3243]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Jun, Guo. Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2011,53(8):85030.
APA	Jun, Guo.(2011).Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities.PLASMA PHYSICS AND CONTROLLED FUSION,53(8),85030.
MLA	Jun, Guo."Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities".PLASMA PHYSICS AND CONTROLLED FUSION 53.8(2011):85030.