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Magnetosonic wave instability by proton ring distributions: Simultaneous data and modeling
Xiao, Fuliang; Zhou, Qinghua; He, Zhaoguo; Yang, Chang; He, Yihua; Tang, Lijun; Xiao, FL (reprint author), Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410004, Hunan, Peoples R China.
Department空间环境部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2013
Volume118Issue:7Pages:817627
ISSN2169-9380
Language英语
KeywordSimultaneous Observation Magnetosonic Waves Proton Ring Distribution Radiation Belts
AbstractSimultaneous observations of enhanced fast magnetosonic (MS) waves and distinct proton ring distributions collected by Cluster satellite near the location L=4-5 on 28 May 2005 are analyzed to study instability of MS waves. A sum of subtracted bi-Maxwellian components is utilized to fit the observed proton (2-10keV) ring distributions. A ray-tracing simulation is performed to calculate the local growth rate and path-integrated gain of MS waves. Peak growth rates are found to occur at the multiples of proton gyrofrequency mainly in the range approximate to 70-120Hz, and wave gain lies in approximate to 40-80dB, comparable to the observation. Moreover, MS waves primarily locate within a few degrees of the geomagnetic equator and propagate either into or out of the plasmasphere through the plasmapause. The current results provide observational support for instability of fast magnetosonic waves generated by the proton ring distribution.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5009
Collection空间环境部
Corresponding AuthorXiao, FL (reprint author), Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410004, Hunan, Peoples R China.
Recommended Citation
GB/T 7714
Xiao, Fuliang,Zhou, Qinghua,He, Zhaoguo,et al. Magnetosonic wave instability by proton ring distributions: Simultaneous data and modeling[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(7):817627.
APA Xiao, Fuliang.,Zhou, Qinghua.,He, Zhaoguo.,Yang, Chang.,He, Yihua.,...&Xiao, FL .(2013).Magnetosonic wave instability by proton ring distributions: Simultaneous data and modeling.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(7),817627.
MLA Xiao, Fuliang,et al."Magnetosonic wave instability by proton ring distributions: Simultaneous data and modeling".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.7(2013):817627.
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