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The Effects of Relative Drift Velocities Between Proton and He2+ on the Magnetic Spectral Signatures in the Plasma Depletion Layer
Guo Jun; Guo, J (reprint author), Qingdao Univ Sci & Technol, Coll Math & Phys, Qingdao 266042, Peoples R China.
Department空间科学部
Source PublicationPLASMA SCIENCE & TECHNOLOGY
2011
Volume13Issue:5Pages:557-560
ISSN1009-0630
Language英语
KeywordIon Cyclotron Wave Hybrid Simulation Temperature Anisotropy
AbstractMagnetic spectrum of the electromagnetic ion cyclotron waves in the terrestrial plasma depletion layer (PDL) are sometimes observed to have a BIF (bifurcated) signature, where a diminution around 0.5 Omega(p) with Omega(p) the proton gyrofrequency, occurs between two activity peaks in the spectrum. By one-dimensional hybrid simulations, the effect of relative drift velocities between protons and He2+ on the magnetic spectral signatures in the PDL is studied. The results show that the relative drift velocity enhances the development of proton cyclotron waves and declines the development of helium cyclotron waves. The proton cyclotron waves are firstly excited, and followed by the excitation of helium cyclotron waves due to the increase in the relative drift velocity. Moreover, the boundary between two activity peaks gets obscure.; Magnetic spectrum of the electromagnetic ion cyclotron waves in the terrestrial plasma depletion layer (PDL) are sometimes observed to have a BIF (bifurcated) signature, where a diminution around 0.5 Omega(p) with Omega(p) the proton gyrofrequency, occurs between two activity peaks in the spectrum. By one-dimensional hybrid simulations, the effect of relative drift velocities between protons and He2+ on the magnetic spectral signatures in the PDL is studied. The results show that the relative drift velocity enhances the development of proton cyclotron waves and declines the development of helium cyclotron waves. The proton cyclotron waves are firstly excited, and followed by the excitation of helium cyclotron waves due to the increase in the relative drift velocity. Moreover, the boundary between two activity peaks gets obscure.
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/122/3276
Collection空间科学部
Corresponding AuthorGuo, J (reprint author), Qingdao Univ Sci & Technol, Coll Math & Phys, Qingdao 266042, Peoples R China.
Recommended Citation
GB/T 7714
Guo Jun,Guo, J . The Effects of Relative Drift Velocities Between Proton and He2+ on the Magnetic Spectral Signatures in the Plasma Depletion Layer[J]. PLASMA SCIENCE & TECHNOLOGY,2011,13(5):557-560.
APA Guo Jun,&Guo, J .(2011).The Effects of Relative Drift Velocities Between Proton and He2+ on the Magnetic Spectral Signatures in the Plasma Depletion Layer.PLASMA SCIENCE & TECHNOLOGY,13(5),557-560.
MLA Guo Jun,et al."The Effects of Relative Drift Velocities Between Proton and He2+ on the Magnetic Spectral Signatures in the Plasma Depletion Layer".PLASMA SCIENCE & TECHNOLOGY 13.5(2011):557-560.
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