Generation of proton aurora by magnetosonic waves
文献类型:期刊论文
作者 | Xiao, Fuliang; Zong, Qiugang; Wang, Yongfu; He, Zhaoguo; Su, Zhenpeng; Yang, Chang; Zhou, Qinghua |
刊名 | SCIENTIFIC REPORTS |
出版日期 | 2014 |
卷号 | 4页码:5190 |
ISSN号 | 2045-2322 |
通讯作者 | Xiao, FL (reprint author), Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410004, Hunan, Peoples R China. |
英文摘要 | Earth'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. |
学科主题 | 空间环境 |
收录类别 | SCI |
语种 | 英语 |
源URL | [http://ir.nssc.ac.cn/handle/122/2708] |
专题 | 国家空间科学中心_空间环境部 |
推荐引用方式 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.,...&Zhou, Qinghua.(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. |
入库方式: OAI收割
来源:国家空间科学中心
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