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The Flapping Motion of Mercury's Magnetotail Current Sheet: MESSENGER Observations

文献类型：期刊论文

作者Zhang, C.2,3; Rong, Z. J.2,3,4; Gao, J. W.2,3; Zhong, J.2,3,4; Chai, L. H.2,3,4; Wei, Y.2,3,4; Shen, C.1; Wan, W. X.2,3,4
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2020-02-28
卷号47期号:4页码:9
ISSN号0094-8276
DOI10.1029/2019GL086011
英文摘要The flapping motion of Mercury's magnetotail current sheet is investigated based on the observations of MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER). The typical flapping period in Mercury's magnetotail is much shorter (similar to 13 s), comparing with similar to 10-20 min at Earth's magnetotail. The magnetic field oscillation amplitude induced by flapping motion is larger near both flanks than that around tail center. Similar to Earth's magnetotail, there are two flapping types existent in Mercury's magnetotail, one is the kink-like flapping that can propagate as traveling waves, and the other one is the steady flapping that does not propagate. Both flapping types distribute widely in magnetotail. The kink-like flapping waves propagating either dawnward or duskward can be observed across the entire magnetotail current sheet, which suggests that the energy sources for triggering the kink-like flapping waves should locate around both tail flanks instead of tail center as is for the Earth's magnetotail. Plain Language Summary The tail-flapping motion is a fundamental dynamic activity of planetary magnetotail, which has been studied widely in terrestrial planets except for Mercury. The tail-flapping motion plays an important role in dissipating the energy stored in magnetotail and has two types according to previous studies, that is, steady flapping and kink-like flapping. To understand the flapping physics generally, studies on the flapping motion of different planets with identified types have been conducted recently. In order to continue study of the planetary tail flapping motion, here, with a state-of-the-art analysis technique, we study the flapping motion of Mercury's magnetotail based on the 4-year measurements of MESSENGER. The derived results demonstrate that the flapping pattern of Mercury's tail is similar to that of Venusian/Martian tail, but different with Earth's magnetotail, though Mercury also possesses an intrinsic dipole magnetosphere.
WOS关键词MAGNETIC-FIELD ; NEUTRAL SHEET ; SOLAR-WIND ; TAIL ; RECONNECTION ; INSTRUMENT
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201904] ; National Natural Science Foundation of China[41525016] ; National Natural Science Foundation of China[41621063] ; National Natural Science Foundation of China[41774188] ; National Natural Science Foundation of China[41922031]
WOS研究方向Geology
语种英语
WOS记录号WOS:000529120100079
出版者AMER GEOPHYSICAL UNION
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/96225]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Rong, Z. J.
作者单位1.Harbin Inst Technol, Shenzhen, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, C.,Rong, Z. J.,Gao, J. W.,et al. The Flapping Motion of Mercury's Magnetotail Current Sheet: MESSENGER Observations[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(4):9.
APA Zhang, C..,Rong, Z. J..,Gao, J. W..,Zhong, J..,Chai, L. H..,...&Wan, W. X..(2020).The Flapping Motion of Mercury's Magnetotail Current Sheet: MESSENGER Observations.GEOPHYSICAL RESEARCH LETTERS,47(4),9.
MLA Zhang, C.,et al."The Flapping Motion of Mercury's Magnetotail Current Sheet: MESSENGER Observations".GEOPHYSICAL RESEARCH LETTERS 47.4(2020):9.

入库方式： OAI收割

来源：地质与地球物理研究所

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