The mid-high latitude whistler mode chorus waves observed around substorm onsets
文献类型：期刊论文
| 作者 | Yang, J. Y. ; Cao, J. B. ; Yan, C. X. ; Li, L. Y. ; Ma, Y. D. |
| 刊名 | Science in China Series E-Technological Sciences
 |
| 出版日期 | 2008 |
| 卷号 | 51期号:10页码:1648-1658 |
| ISSN号 | 1006-9321 |
| 关键词 | chorus substorm onset electron acceleration storm-time chorus source region electron acceleration magnetospheric chorus energetic electrons radiation belt vlf chorus solar-wind emissions frequency |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | Using the data of LFEW/TC-2, we studied the dawn side chorus around substorm onsets during a strong geomagnetic storm in November 2004. During this storm, LFEW/TC-2 observed 14 dawnside chorus events. Nine of them were associated with substorms and occurred within 40 min around the substorm onsets. The frequencies of waves have a very good correlation with the half equatorial electron cyclotron frequencies. Chorus can be excited in the region near magnetic equatorial plane and then propagate to the mid and high latitudes. When the wave frequencies reach the local lower hybrid frequencies, chorus can be reflected due to the lower hybrid resonance. The time delay between the chorus and its echo is about 28 min. Previous observations show that the chorus can propagate at most to the magnetic latitudes of 400. LFEW/TC-2 found for the first time that the chorus in space could propagate to the magnetic latitude of 70 degrees. Since most of the previous chorus observations are made close to the magnetic equatorial plane, our results are important for the studies of excitation and propagation of whistler mode wave, and relevant relativistic electron acceleration in the magnetosphere. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 原文出处 | http://www.springerlink.com/content/97762v5421g63242/fulltext.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1115]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Yang, J. Y.,Cao, J. B.,Yan, C. X.,et al. The mid-high latitude whistler mode chorus waves observed around substorm onsets[J]. Science in China Series E-Technological Sciences,2008,51(10):1648-1658. |
| APA | Yang, J. Y.,Cao, J. B.,Yan, C. X.,Li, L. Y.,&Ma, Y. D..(2008).The mid-high latitude whistler mode chorus waves observed around substorm onsets.Science in China Series E-Technological Sciences,51(10),1648-1658. |
| MLA | Yang, J. Y.,et al."The mid-high latitude whistler mode chorus waves observed around substorm onsets".Science in China Series E-Technological Sciences 51.10(2008):1648-1658. |
入库方式： OAI收割
来源：国家空间科学中心
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