Quadrupolar pattern of the asymmetric guide-field reconnection

被引：52

作者：

Peng, F. Z. ^{[1
]}

Fu, H. S. ^{[1
]}

Cao, J. B. ^{[1
]}

Graham, D. B. ^{[2
]}

Chen, Z. Z. ^{[1
]}

Cao, D. ^{[1
]}

Xu, Y. ^{[1
]}

Huang, S. Y. ^{[3
]}

Wang, T. Y. ^{[1
]}

Khotyaintsev, Y. V. ^{[2
]}

Andre, M. ^{[2
]}

Russell, C. T. ^{[4
]}

Giles, B. ^{[5
]}

Lindqvist, P. -A. ^{[6
]}

Torbert, R. B. ^{[7
,8
]}

Ergun, R. E. ^{[9
]}

Burch, J. L. ^{[10
]}

机构：

[1] Beihang Univ, Sch Space & Environm, Beijing, Peoples R China

[2] Swedish Inst Space Phys, Uppsala, Sweden

[3] Wuhan Univ, Sch Elect & Informat, Wuhan, Peoples R China

[4] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA

[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA

[6] Royal Inst Technol, Stockholm, Sweden

[7] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA

[8] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA

[9] Univ Colorado Boulder, Dept Astrophys & Planetary Sci, Boulder, CO USA

[10] Southwest Res Inst, San Antonio, TX USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2017年 / 122卷 / 06期

关键词：

reconnection at magnetopause; number density asymmetry; moderate guide field; Alfvenic plasma jet; quadrupolar Hall pattern; MAGNETIC RECONNECTION; EARTHS MAGNETOTAIL; DIFFUSION REGION; CURRENT SHEET; WAVES; MMS;

D O I：

10.1002/2016JA023666

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

With high-resolution data of the recently launched Magnetospheric Multiscale mission, we report a magnetic reconnection event at the dayside magnetopause. This reconnection event, having a density asymmetry N-high/N-low approximate to 2 on the two sides of the reconnecting current sheet and a guide field B-g approximate to 0.4B(0) in the out-of-plane direction, exhibit all the two-fluid features: Alfvenic plasma jets in the outflow region, bipolar Hall electric fields toward the current sheet center, quadrupolar Hall magnetic fields in the out-of-plane direction, and the corresponding Hall currents. Obviously, the density asymmetry N-high/N-low approximate to 2 and the guide field B-g approximate to 0.4B(0) are not sufficient to dismiss the quadrupolar pattern of Hall reconnection. This is different from previous simulations, where the bipolar pattern of Hall reconnection was suggested.

引用

页码：6349 / 6356

页数：8

共 42 条

[11] Four-point Cluster application of magnetic field analysis tools: The discontinuity analyzer
Dunlop, MW
Balogh, A
Glassmeier, KH
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2002, 107 (A11)
[12] Influence of asymmetries and guide fields on the magnetic reconnection diffusion region in collisionless space plasmas
Eastwood, J. P.
Phan, T. D.
Oieroset, M.
Shay, M. A.
Malakit, K.
Swisdak, M.
Drake, J. F.
Masters, A.
[J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2013, 55 (12)
[13] Average properties of the magnetic reconnection ion diffusion region in the Earth's magnetotail: The 2001-2005 Cluster observations and comparison with simulations
Eastwood, J. P.
Phan, T. D.
Oieroset, M.
Shay, M. A.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2010, 115
[14] Asymmetry of the Ion Diffusion Region Hall Electric and Magnetic Fields during Guide Field Reconnection: Observations and Comparison with Simulations
Eastwood, J. P.
Shay, M. A.
Phan, T. D.
Oieroset, M.
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (20)
[15] Observations of multiple X-line structure in the Earth's magnetotail current sheet: A Cluster case study
Eastwood, JP
Sibeck, DG
Slavin, JA
Goldstein, ML
Lavraud, B
Sitnov, M
Imber, S
Balogh, A
Lucek, EA
Dandouras, I
[J]. GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (11) : 1 - 4
[16] The Axial Double Probe and Fields Signal Processing for the MMS Mission
Ergun, R. E.
Tucker, S.
Westfall, J.
Goodrich, K. A.
Malaspina, D. M.
Summers, D.
Wallace, J.
Karlsson, M.
Mack, J.
Brennan, N.
Pyke, B.
Withnell, P.
Torbert, R.
Macri, J.
Rau, D.
Dors, I.
Needell, J.
Lindqvist, P. -A.
Olsson, G.
Cully, C. M.
[J]. SPACE SCIENCE REVIEWS, 2016, 199 (1-4) : 167 - 188
[17] Intermittent energy dissipation by turbulent reconnection
Fu, H. S.
Vaivads, A.
Khotyaintsev, Y. V.
Andre, M.
Cao, J. B.
Olshevsky, V.
Eastwood, J. P.
Retino, A.
[J]. GEOPHYSICAL RESEARCH LETTERS, 2017, 44 (01) : 37 - 43
[18] Identifying magnetic reconnection events using the FOTE method
Fu, H. S.
Cao, J. B.
Vaivads, A.
Khotyaintsev, Y. V.
Andre, M.
Dunlop, M.
Liu, W. L.
Lu, H. Y.
Huang, S. Y.
Ma, Y. D.
Eriksson, E.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2016, 121 (02) : 1263 - 1272
[19] How to find magnetic nulls and reconstruct field topology with MMS data?
Fu, H. S.
Vaivads, A.
Khotyaintsev, Y. V.
Olshevsky, V.
Andre, M.
Cao, J. B.
Huang, S. Y.
Retino, A.
Lapenta, G.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2015, 120 (05) : 3758 - 3782
[20] Dipolarization fronts as a consequence of transient reconnection: In situ evidence
Fu, H. S.
Cao, J. B.
Khotyaintsev, Yu. V.
Sitnov, M. I.
Runov, A.
Fu, S. Y.
Hamrin, M.
Andre, M.
Retino, A.
Ma, Y. D.
Lu, H. Y.
Wei, X. H.
Huang, S. Y.
[J]. GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (23) : 6023 - 6027

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