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Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm
Xiao, Fuliang; Yang, Chang; He, Zhaoguo; Su, Zhenpeng; Zhou, Qinghua; He, Yihua; Kletzing, C. A.; Kurth, W. S.; Hospodarsky, G. B.; Spence, H. E.; Reeves, G. D.; Funsten, H. O.; Blake, J. B.; Baker, D. N.; Wygant, J. R.; Xiao, FL (reprint author), Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Hunan, Peoples R China.
Department空间环境部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2014
Volume119Issue:5Pages:3325-3332
ISSN2169-9380
Language英语
KeywordChorus Waves Wave-particle Interaction Relativistic Electron Acceleration Rbsp Results
AbstractThe recent launching of Van Allen probes provides an unprecedent opportunity to investigate variations of the radiation belt relativistic electrons. During the 17-19 March 2013 storm, the Van Allen probes simultaneously detected strong chorus waves and substantial increases in fluxes of relativistic (2 - 4.5 MeV) electrons around L = 4.5. Chorus waves occurred within the lower band 0.1-0.5fce (the electron equatorial gyrofrequency), with a peak spectral density approximate to 10-4 nT2/Hz. Correspondingly, relativistic electron fluxes increased by a factor of 102-103 during the recovery phase compared to the main phase levels. By means of a Gaussian fit to the observed chorus spectra, the drift and bounce-averaged diffusion coefficients are calculated and then used to solve a 2-D Fokker-Planck diffusion equation. Numerical simulations demonstrate that the lower-band chorus waves indeed produce such huge enhancements in relativistic electron fluxes within 15 h, fitting well with the observation.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4380
Collection空间环境部
Corresponding AuthorXiao, FL (reprint author), Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha, Hunan, Peoples R China.
Recommended Citation
GB/T 7714
Xiao, Fuliang,Yang, Chang,He, Zhaoguo,et al. Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2014,119(5):3325-3332.
APA Xiao, Fuliang.,Yang, Chang.,He, Zhaoguo.,Su, Zhenpeng.,Zhou, Qinghua.,...&Xiao, FL .(2014).Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,119(5),3325-3332.
MLA Xiao, Fuliang,et al."Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 119.5(2014):3325-3332.
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