Tracing solar wind plasma entry into the magnetosphere using ion-to-electron temperature ratio
文献类型：期刊论文
| 作者 | Lavraud, B. ; Borovsky, J. E. ; Genot, V. ; Schwartz, S. J. ; Birn, J. ; Fazakerley, A. N. ; Dunlop, M. W. ; Taylor, Mggt ; Hasegawa, H. ; Rouillard, A. P. ; Berchem, J. ; Bogdanova, Y. ; Constantinescu, D. ; Dandouras, I. ; Eastwood, J. P. ; Escoubet, C. P. ; Frey, H. ; Jacquey, C. ; Panov, E.Pu, Z. Y. ; Shen C(沈超) ; Shi JK(史健魁) ; Sibeck, D. G. ; Volwerk, M. ; Wild, J. A. |
| 刊名 | Geophysical Research Letters
 |
| 出版日期 | 2009 |
| 卷号 | 36页码:L18109 |
| 关键词 | interplanetary magnetic-field kelvin-helmholtz vortices latitude boundary-layer kinetic alfven waves dayside magnetopause geotail observations earths magnetosphere sheet transport region |
| ISSN号 | 0094-8276 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | When the solar wind Mach number is low, typically such as in magnetic clouds, the physics of the bow shock leads to a downstream ion-to-electron temperature ratio that can be notably lower than usual. We utilize this property to trace solar wind plasma entry into the magnetosphere by use of Cluster measurements in the vicinity of the dusk magnetopause during the passage of a magnetic cloud at Earth on November 25, 2001. The ion-to-electron temperature ratio was indeed low in the magnetosheath (T-i/T-e similar to 3). In total, three magnetopause boundary layer intervals are encountered on that day. They all show that the low ion-to-electron temperature ratio can be preserved as the plasma enters the magnetosphere, and both with and without the observation of Kelvin-Helmholtz activity. This suggests that the ion-to-electron temperature ratio in the magnetopause boundary layer, which is usually high, is not prescribed by the heating characteristics of the plasma entry mechanism that formed these boundary layers. In the future, this property may be used to (1) further trace plasma entry into inner regions and (2) determine the preferred entry mechanisms if other theoretical, observational and simulation works can give indications on which mechanisms may alter this ratio. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 原文出处 | http://www.agu.org/pubs/crossref/2009/2009GL039442.shtml |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1137]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Lavraud, B.,Borovsky, J. E.,Genot, V.,et al. Tracing solar wind plasma entry into the magnetosphere using ion-to-electron temperature ratio[J]. Geophysical Research Letters,2009,36:L18109. |
| APA | Lavraud, B..,Borovsky, J. E..,Genot, V..,Schwartz, S. J..,Birn, J..,...&Wild, J. A..(2009).Tracing solar wind plasma entry into the magnetosphere using ion-to-electron temperature ratio.Geophysical Research Letters,36,L18109. |
| MLA | Lavraud, B.,et al."Tracing solar wind plasma entry into the magnetosphere using ion-to-electron temperature ratio".Geophysical Research Letters 36(2009):L18109. |
入库方式： OAI收割
来源：国家空间科学中心
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