中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
North-South Plasma Asymmetry Across Mercury's Near-Tail Current Sheet

文献类型：期刊论文

作者Zhong, Jun3; Xie, Lianghai1,2; Lee, Lou-Chuang6,8; Slavin, James A.5; Raines, Jim M.5; Dewey, Ryan M.5; Ip, Wing-Huen7; Saito, Yoshifumi4; Wei, Yong3
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2024-01-16
卷号51期号:1页码:8
ISSN号0094-8276
DOI10.1029/2023GL106266
英文摘要Among nearly 300 near-Mercury tail current sheet crossings performed by the MESSENGER spacecraft, we identified 37 traversals of an asymmetric current sheet, wherein the lobe densities on opposite sides differ by a factor of three or more. These asymmetric current sheet crossings primarily occur on the dawnside. A global magnetohydrodynamic (MHD) simulation was found to be in excellent agreement with the observations. The results suggest that the north-south density asymmetry is caused by solar wind entering via an upstream-connected window in one hemisphere. Furthermore, the Parker spiral interplanetary magnetic field (IMF) controls the near-tail density asymmetries, whereas Mercury's offset dipole magnetic field controls those in mid- or distant-tail regions. We propose that hemispheric asymmetries in Mercury's magnetospheric convection occur under strong IMF conditions. Mercury possesses a small magnetosphere owing to its weak planetary magnetic field and strong interactions with the solar wind in the inner heliosphere. The transport process of the solar wind mass and energy into its magnetosphere remains unclear. Previous MESSENGER observations suggest that although the Earth-like plasma mantle is detected inside the near-tail magnetopause in normal IMF magnitudes, it is not a permanent feature of Mercury's magnetosphere. Here we report, for the first time, that solar wind ions can enter deep into the near-tail region via an upstream-connected window in one hemisphere and form a density-asymmetric current sheet under strong IMF conditions. Through MHD simulations, we revealed tail dawn-dusk asymmetries during the transport of solar wind plasma. Advanced data expected from BepiColombo will further improve our understanding of the solar wind-magnetosphere coupling. North-south asymmetries exist in Mercury's magnetotailBoth the interplanetary magnetic field (IMF) BX polarity and intrinsic offset dipole magnetic field control the north-south density asymmetry in Mercury's tailThe IMF Parker spiral results in a dawnside preference for the plasma asymmetric current sheet
WOS关键词LATITUDE BOUNDARY-LAYER ; MESSENGER OBSERVATIONS ; MAGNETIC-FIELD ; MAGNETOPAUSE ; INSTRUMENT ; PARTICLE ; MERCURY
资助项目Chinese Academy of Sciences[XDB41000000] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[42174217] ; National Natural Science Foundation of China[IGGCAS-201904] ; National Natural Science Foundation of China[IGGCAS-202102] ; Key Research Program of the Institute of Geology & Geophysics, CAS[MOST 110-2111-M-002-017] ; Ministry of Science and Technology, Taiwan[80NSSC18K1137] ; Ministry of Science and Technology, Taiwan[80NSSC21M0364] ; Ministry of Science and Technology, Taiwan[80NSSC21K0052] ; NASA ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:001133153800001
资助机构Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; B-type Strategic Priority Program of the 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 ; 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 ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; NASA ; NASA ; NASA ; NASA ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; B-type Strategic Priority Program of the 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 ; 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 ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; NASA ; NASA ; NASA ; NASA ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; B-type Strategic Priority Program of the 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 ; 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 ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; NASA ; NASA ; NASA ; NASA ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; B-type Strategic Priority Program of the 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 ; 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 ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; NASA ; NASA ; NASA ; NASA ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/111692]  
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, Jun; Xie, Lianghai
作者单位1.Joint Res & Dev Ctr Chinese Sci Acad & Shen Cty, Shandong, Peoples R China
2.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
4.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Japan
5.Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI USA
6.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China
7.Natl Cent Univ, Grad Inst Astron, Taoyuan, Taiwan
8.Acad Sinica, Inst Earth Sci, Taipei, Taiwan
推荐引用方式
GB/T 7714		 Zhong, Jun,Xie, Lianghai,Lee, Lou-Chuang,et al. North-South Plasma Asymmetry Across Mercury's Near-Tail Current Sheet[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(1):8.
APA Zhong, Jun.,Xie, Lianghai.,Lee, Lou-Chuang.,Slavin, James A..,Raines, Jim M..,...&Wei, Yong.(2024).North-South Plasma Asymmetry Across Mercury's Near-Tail Current Sheet.GEOPHYSICAL RESEARCH LETTERS,51(1),8.
MLA Zhong, Jun,et al."North-South Plasma Asymmetry Across Mercury's Near-Tail Current Sheet".GEOPHYSICAL RESEARCH LETTERS 51.1(2024):8.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。