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Formation of Macroscale Flux Transfer Events at Mercury

文献类型：期刊论文

作者Zhong, J.6; Wei, Y.6; Lee, L. C.4,5; He, J. S.3; Slavin, J. A.2; Pu, Z. Y.3; Zhang, H.6; Wang, X. G.1; Wan, W. X.6
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2020-04-10
卷号893期号:1页码:5
关键词Planetary magnetosphere Mercury (planet) Solar magnetic reconnection Planetary boundary layers Solar-planetary interactions
ISSN号2041-8205
DOI10.3847/2041-8213/ab8566
英文摘要Flux transfer events (FTEs) are magnetic flux ropes that are produced via magnetic reconnection at the planetary magnetopause where the solar wind directly interacts with the magnetosphere. Previous observations show that FTEs with a duration of several seconds, corresponding to a spatial scale of similar to 0.5-1 R-M, can occur at Mercury. However, the formation of these macroscale FTEs at a small dimensional magnetopause with a radius of similar to 1.5 R-M remains unclear. Here, we report the observations of active magnetic reconnection events at Mercury's magnetopause by the MESSENGER spacecraft. The reconnection process is dominated by the formation of a series of multi-scale FTEs. Ion-scale flux ropes, typically with durations of similar to 1 s or less, may be produced by the tearing instability in the thin current sheet near the subsolar position. Moreover, the commonly observed macroscale FTEs consist of three to tens of successive small-scale FTEs. We propose that macroscale FTEs at Mercury are generated by the interaction and merging of multiple ion-scale flux ropes, probably through two or more steps. This is distinct from the formation of typical FTEs, mainly between a pair of X-lines, at Earth's magnetopause. Thus, the formation and evolution of FTEs may differ among planetary magnetospheres with a vast range of scale sizes. We further conclude that Mercury's magnetopause is a natural plasma laboratory to study flux rope dynamics and evolution for the upcoming Bepi-Colombo mission.
WOS关键词X-LINE RECONNECTION ; MESSENGER OBSERVATIONS ; MAGNETIC RECONNECTION ; DAYSIDE MAGNETOSPHERE ; INSTRUMENT ; ROPES
资助项目B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; National Natural Science Foundation of China[41874198] ; National Natural Science Foundation of China[41674178] ; National Natural Science Foundation of China[41874200] ; National Natural Science Foundation of China[41621004] ; Science and Technology Development Fund (FDCT) of Macau[0035/2018/AFJ]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000526934200001
出版者IOP PUBLISHING LTD
资助机构B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the 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 ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the 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 ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the 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 ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the 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 ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau ; Science and Technology Development Fund (FDCT) of Macau
源URL[http://ir.iggcas.ac.cn/handle/132A11/95573]  
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Zhong, J.
作者单位1.Harbin Inst Technol, Dept Phys, Harbin, Peoples R China
2.Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA
3.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
4.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China
5.Acad Sinica, Inst Earth Sci, Taipei, Taiwan
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhong, J.,Wei, Y.,Lee, L. C.,et al. Formation of Macroscale Flux Transfer Events at Mercury[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,893(1):5.
APA Zhong, J..,Wei, Y..,Lee, L. C..,He, J. S..,Slavin, J. A..,...&Wan, W. X..(2020).Formation of Macroscale Flux Transfer Events at Mercury.ASTROPHYSICAL JOURNAL LETTERS,893(1),5.
MLA Zhong, J.,et al."Formation of Macroscale Flux Transfer Events at Mercury".ASTROPHYSICAL JOURNAL LETTERS 893.1(2020):5.

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来源：地质与地球物理研究所

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