MMS Observation of Magnetic Reconnection in the Turbulent Magnetosheath

被引：73

作者：

Voros, Z. ^{[1
,2
,3
]}

Yordanova, E. ^{[4
]}

Varsani, A. ^{[2
,5
]}

Genestreti, K. J. ^{[2
]}

Khotyaintsev, Yu. V. ^{[4
]}

Li, W. ^{[4
]}

Graham, D. B. ^{[4
]}

Norgren, C. ^{[4
]}

Nakamura, R. ^{[2
]}

Narita, Y. ^{[2
]}

Plaschke, F. ^{[1
,2
]}

Magnes, W. ^{[2
]}

Baumjohann, W. ^{[2
]}

Fischer, D. ^{[2
]}

Vaivads, A. ^{[4
]}

Eriksson, E. ^{[4
,6
]}

Lindqvist, P. -A. ^{[7
]}

Marklund, G. ^{[7
]}

Ergun, R. E. ^{[8
]}

Leitner, M. ^{[1
]}

Leubner, M. P. ^{[9
]}

Strangeway, R. J. ^{[10
]}

Le Contel, O. ^{[11
]}

Pollock, C. ^{[12
]}

Giles, B. J. ^{[12
]}

Torbert, R. B.

Burch, J. L. ^{[13
]}

Avanov, L. A. ^{[12
]}

Dorelli, J. C. ^{[12
]}

Gershman, D. J. ^{[12
,14
]}

Paterson, W. R. ^{[12
]}

Lavraud, B. ^{[15
]}

Saito, Y. ^{[16
]}

机构：

[1] Karl Franzens Univ Graz, Inst Phys, Graz, Austria

[2] Austrian Acad Sci, Space Res Inst, Graz, Austria

[3] Hungarian Acad Sci, RCAES, Geodet & Geophys Inst, Sopron, Hungary

[4] Swedish Inst Space Phys, Uppsala, Sweden

[5] UCL, Mullard Space Sci Lab, Dorking, Surrey, England

[6] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden

[7] Royal Inst Technol, Space & Plasma Grp, Stockholm, Sweden

[8] Univ Colorado Boulder, Lab Atmospher & Space Phys, Boulder, CO USA

[9] Univ Innsbruck, Inst Astro & Particle Phys, Innsbruck, Austria

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

[11] UPMC, Univ Paris Sud, CNRS, Ecole Polytech,Lab Phys Plasmas,Obs Paris, Paris, France

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

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

[14] Univ Maryland, Astron Dept, College Pk, MD 20742 USA

[15] Univ Toulouse, UPS, CNRS, CNES,IRAP, Toulouse, France

[16] JAXA, Chofu, Tokyo, Japan

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2017年 / 122卷 / 11期

关键词：

ART; NO; A01107; SOLAR-WIND; DAYSIDE MAGNETOPAUSE; CLOUD EROSION; SEARCH-COIL; BOW SHOCK; FIELD; PLASMA; REGION; ACCELERATION;

D O I：

10.1002/2017JA024535

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we use the full armament of the MMS (Magnetospheric Multiscale) spacecraft to study magnetic reconnection in the turbulent magnetosheath downstream of a quasi-parallel bow shock. Contrarily to the magnetopause and magnetotail cases, only a few observations of reconnection in the magnetosheath have been reported. The case study in this paper presents, for the first time, both fluid-scale and kinetic-scale signatures of an ongoing reconnection in the turbulent magnetosheath. The spacecraft are crossing the reconnection inflow and outflow regions and the ion diffusion region (IDR). Inside the reconnection outflows D shape ion distributions are observed. Inside the IDR mixing of ion populations, crescent-like velocity distributions and ion accelerations are observed. One of the spacecraft skims the outer region of the electron diffusion region, where parallel electric fields, energy dissipation/conversion, electron pressure tensor agyrotropy, electron temperature anisotropy, and electron accelerations are observed. Some of the difficulties of the observations of magnetic reconnection in turbulent plasma are also outlined.

引用

页码：11442 / 11467

页数：26

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