Observations of Electron-Only Magnetic Reconnection Associated With Macroscopic Magnetic Flux Ropes

被引：16
|
作者：
Man, H. Y. [1 ,2 ]
Zhou, M. [2 ,3 ]
Yi, Y. Y. [2 ,3 ]
Zhong, Z. H. [1 ,2 ]
Tian, A. M. [4 ]
Deng, X. H. [2 ]
Khotyaintsev, Y. [5 ]
Russell, C. T. [6 ]
Giles, B. L. [7 ]
机构：
[1] Nanchang Univ, Sch Resources Environm & Chem Engn, Nanchang, Jiangxi, Peoples R China
[2] Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
[3] Nanchang Univ, Sch Sci, Dept Phys, Nanchang, Jiangxi, Peoples R China
[4] Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai, Peoples R China
[5] Swedish Inst Space Phys, Uppsala, Sweden
[6] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA
[7] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2020年 / 47卷 / 19期
基金：
中国国家自然科学基金;
关键词：
magnetic reconnection; magnetotail; flux rope; SECONDARY RECONNECTION; MMS OBSERVATIONS;
D O I：
10.1029/2020GL089659
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We report a Magnetospheric Multiscale (MMS) mission observation of magnetic reconnection occurring at the edge of a large-scale magnetic flux rope (MFR), the cross-section of which was about 2 R-E. The MFR was observed at the duskside in the Earth's magnetotail and was highly oblique with its axis approximately along theX(GSM)direction. We find an electron-scale current sheet near the edge of this MFR. The Hall magnetic and electric field, super-Alfvenic electron outflow, parallel electric field, and positive energy dissipation were observed associated with the current sheet, which indicates that MMS detected a reconnecting current sheet with a large guide field. Interestingly, ions were not coupled in this reconnection, akin to the electron-only reconnection observed in the turbulent magnetosheath. We further find that the electron-only reconnection is commonly associated with a macroscopic MFR. This result will shed new light on understanding the multiscale coupling associated with an MFR in space plasmas.
引用
收藏
页数：9
相关论文
共 50 条
  • [31] Switchbacks as signatures of magnetic flux ropes generated by interchange reconnection in the corona
    Drake, J. F.
    Agapitov, O.
    Swisdak, M.
    Badman, S. T.
    Bale, S. D.
    Horbury, T. S.
    Kasper, J. C.
    MacDowall, R. J.
    Mozer, F. S.
    Phan, T. D.
    Pulupa, M.
    Szabo, A.
    Velli, M.
    [J]. ASTRONOMY & ASTROPHYSICS, 2021, 650
  • [32] Using Direct Laboratory Measurements of Electron Temperature Anisotropy to Identify the Heating Mechanism in Electron-Only Guide Field Magnetic Reconnection
    Shi, Peiyun
    Scime, Earl E.
    Barbhuiya, M. Hasan
    Cassak, Paul A.
    Adhikari, Subash
    Swisdak, M.
    Stawarz, Julia E.
    [J]. PHYSICAL REVIEW LETTERS, 2023, 131 (15)
  • [33] Cluster Observations of Energetic Electron Acceleration Within Earthward Reconnection Jet and Associated Magnetic Flux Rope
    Vaivads, A.
    Khotyaintsev, Yu, V
    Retino, A.
    Fu, H. S.
    Kronberg, E. A.
    Daly, P. W.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2021, 126 (08)
  • [34] Geotail observations of magnetic flux ropes in the plasma sheet
    Slavin, JA
    Lepping, RP
    Gjerloev, J
    Fairfield, DH
    Hesse, M
    Owen, CJ
    Moldwin, MB
    Nagai, T
    Ieda, A
    Mukai, T
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2003, 108 (A1)
  • [35] Asymmetry in the current sheet and secondary magnetic flux ropes during guide field magnetic reconnection
    Wang, Rongsheng
    Nakamura, Rumi
    Lu, Quanming
    Du, Aimin
    Zhang, Tielong
    Baumjohann, Wolfgang
    Khotyaintsev, Yuri V.
    Volwerk, Martin
    Andre, Mats
    Fujimoto, M.
    Nakamura, T. K. M.
    Fazakerley, Andrew N.
    Du, Jian
    Teh, Waileong
    Panov, Evgeny V.
    Zieger, Bertalan
    Pan, Yongxin
    Lu, San
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2012, 117
  • [36] Reconnection Rate and Transition from Ion-coupled to Electron-only Reconnection
    Guan, Yundan
    Lu, Quanming
    Lu, San
    Huang, Kai
    Wang, Rongsheng
    [J]. ASTROPHYSICAL JOURNAL, 2023, 958 (02):
  • [37] Reconnection Outflow Reversal Associated with Ion-scale Magnetic Flux Ropes in the Earth's Midtail: ARTEMIS Observations and Reconstruction Results
    Teh, Wai-Leong
    [J]. ASTROPHYSICAL JOURNAL, 2022, 934 (02):
  • [38] Observational Evidence of Magnetic Reconnection Associated with Magnetic Flux Cancellation
    Yang, Bo
    Yang, Jiayan
    Bi, Yi
    Hong, Junchao
    Li, Haidong
    Xu, Zhe
    Chen, Hechao
    [J]. ASTROPHYSICAL JOURNAL, 2018, 861 (02):
  • [39] Intermittent Electron-only Reconnection at Lunar Mini-magnetospheres
    Stanier, A.
    Chen, L. J.
    Le, A.
    Halekas, J.
    Sawyer, R.
    [J]. ASTROPHYSICAL JOURNAL LETTERS, 2024, 963 (01)
  • [40] OBSERVATIONS OF MAGNETIC-FLUX ROPES AND ASSOCIATED CURRENTS IN EARTHS MAGNETOTAIL WITH THE GALILEO SPACECRAFT
    KHURANA, KK
    KIVELSON, MG
    FRANK, LA
    PATERSON, WR
    [J]. GEOPHYSICAL RESEARCH LETTERS, 1995, 22 (16) : 2087 - 2090
12345