DOI: 10.1002/2015GL064421
论文题名: Motion of reconnection region in the Earth's magnetotail
作者: Alexandrova A. ; Nakamura R. ; Semenov V.S. ; Nakamura T.K.M.
刊名: Geophysical Research Letters
ISSN: 0094-8679
EISSN: 1944-8410
出版年: 2015
卷: 42, 期: 12 起始页码: 4685
结束页码: 4693
语种: 英语
英文关键词: magnetic reconnection
; magnetotail dynamics
; X-line motion
Scopus关键词: Geophysics
; Cluster spacecraft
; Current sheets
; Data set
; Earth's magnetotail
; Magnetic reconnections
; Magnetotail dynamics
; Time interval
; X-line motion
; Earth sciences
; data set
; Earth
; electric field
; magnetotail
; pressure gradient
; spacecraft
; velocity profile
英文摘要: We obtain the X-line velocity in the Earth's magnetotail for 24 reconnection events observed by the Cluster spacecraft between 2001 and 2005. The data set consists of 10 single X-lines and 14 X-lines from the time intervals of multiple reconnection. Except for two X-lines from multiple reconnection, all the X-lines move tailward (radial outward) along the current sheet, which is consistent with the direction of the pressure gradient. The X-lines also propagate outward from the midnight sector in the dawn-dusk direction. The X-line speed in the Earth-tail direction is comparable and proportional to the reconnection inflow speed and approximately 0.1 of the reconnection outflow speed. These results suggest that both the global pressure distribution and the local reconnection physics may affect the motion of the X-line. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948719515&doi=10.1002%2f2015GL064421&partnerID=40&md5=e933a9349bc991badff4d1d72b8d11e2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8295
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Space Research Institute, Austrian Academy of Sciences, Graz, Austria
Recommended Citation:
Alexandrova A.,Nakamura R.,Semenov V.S.,et al. Motion of reconnection region in the Earth's magnetotail[J]. Geophysical Research Letters,2015-01-01,42(12).