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DOI: 10.1002/2016GL069665
论文题名:
Magnetic reconnection and modification of the Hall physics due to cold ions at the magnetopause
作者: André M.; Li W.; Toledo-Redondo S.; Khotyaintsev Y.V.; Vaivads A.; Graham D.B.; Norgren C.; Burch J.; Lindqvist P.-A.; Marklund G.; Ergun R.; Torbert R.; Magnes W.; Russell C.T.; Giles B.; Moore T.E.; Chandler M.O.; Pollock C.; Young D.T.; Avanov L.A.; Dorelli J.C.; Gershman D.J.; Paterson W.R.; Lavraud B.; Saito Y.
刊名: Geophysical Research Letters
ISSN: 0094-8932
EISSN: 1944-8663
出版年: 2016
卷: 43, 期:13
起始页码: 6705
结束页码: 6712
语种: 英语
英文关键词: electric fields ; Hall current ; magnetic reconnection ; magnetopause
Scopus关键词: Electric fields ; Magnetism ; Magnetopause ; Magnetosphere ; Mixtures ; Electron pressure tensor ; Hall current ; Hall physics ; Ion temperature ; Length scale ; Magnetic reconnections ; Magnetospheric multi scale ; Separatrix ; Ions ; electric field ; electron ; ion ; ionosphere ; magnetic method ; magnetopause ; physics ; pressure field ; spacecraft
英文摘要: Observations by the four Magnetospheric Multiscale spacecraft are used to investigate the Hall physics of a magnetopause magnetic reconnection separatrix layer. Inside this layer of currents and strong normal electric fields, cold (eV) ions of ionospheric origin can remain frozen-in together with the electrons. The cold ions reduce the Hall current. Using a generalized Ohm's law, the electric field is balanced by the sum of the terms corresponding to the Hall current, the v × B drifting cold ions, and the divergence of the electron pressure tensor. A mixture of hot and cold ions is common at the subsolar magnetopause. A mixture of length scales caused by a mixture of ion temperatures has significant effects on the Hall physics of magnetic reconnection. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979025540&doi=10.1002%2f2016GL069665&partnerID=40&md5=1036a63e16b75fc06276e8b5e6cbafc6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9895
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: Swedish Institute of Space Physics, Uppsala, Sweden

Recommended Citation:
André M.,Li W.,Toledo-Redondo S.,et al. Magnetic reconnection and modification of the Hall physics due to cold ions at the magnetopause[J]. Geophysical Research Letters,2016-01-01,43(13).
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