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Generation of proton aurora by magnetosonic waves
Xiao, Fuliang; Zong, Qiugang; Wang, Yongfu; He, Zhaoguo; Su, Zhenpeng; Yang, Chang; Zhou, Qinghua; 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 PublicationSCIENTIFIC REPORTS
2014
Volume4Pages:5190
ISSN2045-2322
Language英语
AbstractEarth's proton aurora occurs over a broad MLT region and is produced by the precipitation of low-energy (2-10 keV) plasmasheet protons. Proton precipitation can alter chemical compositions of the atmosphere, linking solar activity with global climate variability. Previous studies proposed that electromagnetic ion cyclotron waves can resonate with protons, producing proton scattering precipitation. A long-outstanding question still remains whether there is another mechanism responsible for the proton aurora. Here, by performing satellite data analysis and diffusion equation calculations, we show that fast magnetosonic waves can produce trapped proton scattering that yields proton aurora. This provides a new insight into the mechanism of proton aurora. Furthermore, a ray-tracing study demonstrates that magnetosonic wave propagates over a broad MLT region, consistent with the global distribution of proton aurora.
Indexed BySCI
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/122/2708
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,Zong, Qiugang,Wang, Yongfu,et al. Generation of proton aurora by magnetosonic waves[J]. SCIENTIFIC REPORTS,2014,4:5190.
APA Xiao, Fuliang.,Zong, Qiugang.,Wang, Yongfu.,He, Zhaoguo.,Su, Zhenpeng.,...&Xiao, FL .(2014).Generation of proton aurora by magnetosonic waves.SCIENTIFIC REPORTS,4,5190.
MLA Xiao, Fuliang,et al."Generation of proton aurora by magnetosonic waves".SCIENTIFIC REPORTS 4(2014):5190.
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