globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061157
论文题名:
Observation of double layer in the separatrix region during magnetic reconnection
作者: Wang R.; Lu Q.; Khotyaintsev Y.V.; Volwerk M.; Du A.; Nakamura R.; Gonzalez W.D.; Sun X.; Baumjohann W.; Li X.; Zhang T.; Fazakerley A.N.; Huang C.; Wu M.
刊名: Geophysical Research Letters
ISSN: 0094-9940
EISSN: 1944-9671
出版年: 2014
卷: 41, 期:14
起始页码: 4851
结束页码: 4858
语种: 英语
英文关键词: double layers ; electron holes ; magnetic reconnection
Scopus关键词: Energy dissipation ; Beam distribution ; Double layers ; Electron hole ; Electron measurements ; In-situ observations ; Magnetic reconnections ; Parallel electric fields ; Time resolution ; Electrons ; acoustic wave ; electric field ; electron ; energy dissipation ; magnetic field
英文摘要: We present in situ observation of double layer (DL) and associated electron measurement in the subspin time resolution in the separatrix region during reconnection for the first time. The DL is inferred to propagate away from the X line at a velocity of about ion acoustic speed and the parallel electric field carried by the DL can reach -20 mV/m. The electron displays a beam distribution inside the DL and streams toward the X line with a local electron Alfvén velocity. A series of electron holes moving toward the X line are observed in the wake of the DL. The identification of multiple similar DLs indicates that they are persistently produced and therefore might play an important role in energy conversion during reconnection. The observation suggests that energy dissipation during reconnection can occur in any region where the DL can reach. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904780307&doi=10.1002%2f2014GL061157&partnerID=40&md5=acb46b385935d19a0b4833724743537b
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被引频次[WOS]:47   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7204
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作者单位: Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Wang R.,Lu Q.,Khotyaintsev Y.V.,et al. Observation of double layer in the separatrix region during magnetic reconnection[J]. Geophysical Research Letters,2014-01-01,41(14).
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