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题名: Kinetic evidence of magnetic reconnection due to Kelvin-Helmholtz waves
作者: Li, W.; Andre, M.; Khotyaintsev, Yu. V.; Vaivads, A.; Graham, D. B.; Toledo-Redondo, S.; Norgren, C.; Henri, P.; Wang, C.; Tang, B. B.; Lavraud, B.; Vernisse, Y.; Turner, D. L.; Burch, J.; Torbert, R.; Magnes, W.; Russell, C. T.; Blake, J. B.; Mauk, B.; Giles, B.; Pollock, C.; Fennell, J.; Jaynes, A.; Avanov, L. A.; Dorelli, J. C.; Gershman, D. J.; Paterson, W. R.; Saito, Y.; Strangeway, R. J.
作者部门: 空间科学部
通讯作者: Li, W (reprint author), Swedish Inst Space Phys, Uppsala, Sweden.
关键词: kinetic evidence ; reconnection ; Kelvin-Helmholtz wave
刊名: GEOPHYSICAL RESEARCH LETTERS
ISSN号: 0094-8276
出版日期: 2016
卷号: 43, 期号:11, 页码:5635-5643
收录类别: SCI
项目资助者: Swedish National Space Board (SNSB) [164/14, 176/15] ; CNES ; CNRS
英文摘要: The Kelvin-Helmholtz (KH) instability at the Earth's magnetopause is predominantly excited during northward interplanetary magnetic field (IMF). Magnetic reconnection due to KH waves has been suggested as one of the mechanisms to transfer solar wind plasma into the magnetosphere. We investigate KH waves observed at the magnetopause by the Magnetospheric Multiscale (MMS) mission; in particular, we study the trailing edges of KH waves with Alfvenic ion jets. We observe gradual mixing of magnetospheric and magnetosheath ions at the boundary layer. The magnetospheric electrons with energy up to 80keV are observed on the magnetosheath side of the jets, which indicates that they escape into the magnetosheath through reconnected magnetic field lines. At the same time, the low-energy (below 100eV) magnetosheath electrons enter the magnetosphere and are heated in the field-aligned direction at the high-density edge of the jets. Our observations provide unambiguous kinetic evidence for ongoing reconnection due to KH waves.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5598
Appears in Collections:空间科学部_期刊论文

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