DOI: 10.1002/2014GL060440
论文题名: The scale of the magnetotail reconnecting current sheet in the presence of O+
作者: Liu Y.H. ; Kistler L.M. ; Mouikis C.G. ; Roytershteyn V. ; Karimabadi H.
刊名: Geophysical Research Letters
ISSN: 0094-9952
EISSN: 1944-9683
出版年: 2014
卷: 41, 期: 14 起始页码: 4819
结束页码: 4827
语种: 英语
英文关键词: current sheet
; heavy ion
; magnetotail
; reconnection
Scopus关键词: Heavy ions
; Plasma sheaths
; Current layers
; Current sheets
; Ion inertial length
; Magnetotails
; Multiscale nature
; Plasma sheet
; Reconnecting current sheets
; reconnection
; Plasma shock waves
; geomagnetic field
; ion
; magnetic field
; magnetosphere
; magnetotail
; plasma
英文摘要: The reconnection current layer thickness is expected to scale with either the ion inertial length or the ion gyroradius. Both of these quantities scale with the mass of the ions present. During geomagnetically disturbed times, the reconnection layer in the magnetotail can contain a significant amount of O +. Using Cluster multi-spacecraft measurements, we have studied nine reconnection events in the magnetotail plasmasheet, to determine whether the reconnecting current sheet thickness scales with the ion gyroradius or the ion inertial length, and whether the amount of O+ in the plasma sheet has an effect on the current layer thickness. We find that the thickness is equal to the H+ gyroradius, even when the plasma sheet has a high O + content. This result is in contrast to Hall MHD expectations and likely results from the multiscale nature of the current sheet. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904535370&doi=10.1002%2f2014GL060440&partnerID=40&md5=1730155e855134d31257c4e2b948cbae
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7216
Appears in Collections: 气候减缓与适应
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作者单位: Space Science Center, Morse Hall, University of New Hampshire, Durham, NH, United States
Recommended Citation:
Liu Y.H.,Kistler L.M.,Mouikis C.G.,et al. The scale of the magnetotail reconnecting current sheet in the presence of O+[J]. Geophysical Research Letters,2014-01-01,41(14).