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Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities
Jun, Guo; Jun, G (reprint author), Qingdao Univ Sci & Technol, Coll Math & Phys, Qingdao 266042, Peoples R China.
Department空间科学部
Source PublicationPLASMA PHYSICS AND CONTROLLED FUSION
2011
Volume53Issue:8Pages:85030
ISSN0741-3335
Language英语
AbstractA 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.; 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.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3243
Collection空间科学部
Corresponding AuthorJun, G (reprint author), Qingdao Univ Sci & Technol, Coll Math & Phys, Qingdao 266042, Peoples R China.
Recommended Citation
GB/T 7714
Jun, Guo,Jun, G . 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,&Jun, G .(2011).Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities.PLASMA PHYSICS AND CONTROLLED FUSION,53(8),85030.
MLA Jun, Guo,et al."Interplay and competition between an electron-beam-driven whistler and Langmuir instabilities".PLASMA PHYSICS AND CONTROLLED FUSION 53.8(2011):85030.
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