globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069085
Thick escaping magnetospheric ion layer in magnetopause reconnection with MMS observations
Author: Nagai T.; Kitamura N.; Hasegawa H.; Shinohara I.; Yokota S.; Saito Y.; Nakamura R.; Giles B.L.; Pollock C.; Moore T.E.; Dorelli J.C.; Gershman D.J.; Paterson W.R.; Avanov L.A.; Chandler M.O.; Coffey V.; Sauvaud J.A.; Lavraud B.; Russell C.T.; Strangeway R.J.; Oka M.; Genestreti K.J.; Burch J.L.
Source Publication: Geophysical Research Letters
ISSN: 0094-9605
EISSN: 1944-9336
Publishing Year: 2016
Volume: 43, Issue:12
pages begin: 6028
pages end: 6035
Language: 英语
Keyword: magnetic reconnection ; magnetopause
Scopus Keyword: Ions ; Magnetopause ; High-time resolution ; Ion velocity distribution ; Magnetic reconnections ; Magnetic-field intensity ; Magnetosheaths ; Magnetospheric ions ; Magnetospheric multiscale missions ; Multiple points ; Magnetosphere
English Abstract: The structure of asymmetric magnetopause reconnection is explored with multiple point and high-time-resolution ion velocity distribution observations from the Magnetospheric Multiscale mission. On 9 September 2015, reconnection took place at the magnetopause, which separated the magnetosheath and the magnetosphere with a density ratio of 25:2. The magnetic field intensity was rather constant, even higher in the asymptotic magnetosheath. The reconnected field line region had a width of approximately 540 km. In this region, streaming and gyrating ions are discriminated. The large extension of the reconnected field line region toward the magnetosheath can be identified where a thick layer of escaping magnetospheric ions was formed. The scale of the magnetosheath side of the reconnected field line region relative to the scale of its magnetospheric side was 4.5:1. ©2016. American Geophysical Union. All Rights Reserved.
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Document Type: 期刊论文
Appears in Collections:科学计划与规划

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Affiliation: Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo, Japan

Recommended Citation:
Nagai T.,Kitamura N.,Hasegawa H.,et al. Thick escaping magnetospheric ion layer in magnetopause reconnection with MMS observations[J]. Geophysical Research Letters,2016-01-01,43(12).
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