IGGCAS OpenIR  > 地球与行星物理院重点实验室
Observations of Short-period Current Sheet Flapping Events in the Earth's Magnetotail
Wei,Y. Y.1,2; Huang,S. Y.1; Rong,Z. J.3,4; Yuan,Z. G.1; Jiang,K.1; Deng,X. H.5; Zhou,M.5; Fu,H. S.6; Yu,X. D.1; Xu,S. B.1; He,L. H.1; Deng,D.1
2019-03-29
Source PublicationThe Astrophysical Journal Letters
ISSN2041-8205
Volume874Issue:2
AbstractAbstract The flapping motion of the current sheet, with the period from several minutes to tens of minutes, is one common dynamic phenomenon in the planetary magnetotail. This Letter reports on one current sheet flapping event with the short semi-period of ~6 s on 2017 July 17 in the Earth’s magnetotail for the first time using the Magnetospheric Multiscale (MMS) mission. This short time period flapping event consists of five consecutive crossings of the current sheet. Based on a multipoint analysis of the MMS, it is found that the first four crossings propagated duskward and belong to kink-like flapping, and the fifth crossing belongs to steady flapping. The current sheet flapping was embedded in the diffusion region of magnetic reconnection, which was identified by the well-organized Hall electromagnetic field. The period of current sheet flapping was modulated by the reconnection electric field and perpendicular plasma flow, indicating that this flapping motion may be triggered by the periodical unsteady magnetic reconnection.
Keywordinstabilities magnetic reconnection planets and satellites: general planets and satellites: magnetic fields planets and satellites: terrestrial planets
DOI10.3847/2041-8213/ab0f28
Language英语
WOS IDIOP:2041-8205-874-2-ab0f28
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/91066
Collection地球与行星物理院重点实验室
Affiliation1.School of Electronic Information, Wuhan University, Wuhan, People’s Republic of China; shiyonghuang@whu.edu.cn
2.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Shandong University, Weihai, People’s Republic of China
3.Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, People’s Republic of China
4.College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
5.Institute of Space Science and Technology, Nanchang University, Nanchang, People’s Republic of China
6.School of Space and Environment, Beihang University, Beijing, People’s Republic of China
Recommended Citation
GB/T 7714
Wei,Y. Y.,Huang,S. Y.,Rong,Z. J.,et al. Observations of Short-period Current Sheet Flapping Events in the Earth's Magnetotail[J]. The Astrophysical Journal Letters,2019,874(2).
APA Wei,Y. Y..,Huang,S. Y..,Rong,Z. J..,Yuan,Z. G..,Jiang,K..,...&Deng,D..(2019).Observations of Short-period Current Sheet Flapping Events in the Earth's Magnetotail.The Astrophysical Journal Letters,874(2).
MLA Wei,Y. Y.,et al."Observations of Short-period Current Sheet Flapping Events in the Earth's Magnetotail".The Astrophysical Journal Letters 874.2(2019).
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