Lower-Hybrid Drift Waves Driving Electron Nongyrotropic Heating and Vortical Flows in a Magnetic Reconnection Layer

被引：38

作者：

Chen, L-J ^{[1
]}

Wang, S. ^{[1
,2
]}

Le Contel, O. ^{[3
]}

Rager, A. ^{[1
]}

Hesse, M. ^{[4
]}

Drake, J. ^{[2
]}

Dorelli, J. ^{[1
]}

Ng, J. ^{[1
,2
]}

Bessho, N. ^{[1
,2
]}

Graham, D. ^{[5
]}

Wilson, Lynn B., III ^{[1
]}

Moore, T. ^{[1
]}

Giles, B. ^{[1
]}

Paterson, W. ^{[1
]}

Lavraud, B. ^{[6
]}

Genestreti, K. ^{[7
]}

Nakamura, R. ^{[8
]}

Khotyaintsev, Yu, V ^{[5
]}

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

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

Burch, J. ^{[10
]}

Pollock, C. ^{[11
]}

Russell, C. T. ^{[12
]}

Lindqvist, P-A ^{[13
]}

Avanov, L. ^{[1
,2
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Code 916, Greenbelt, MD 20771 USA

[2] Univ Maryland, College Pk, MD 20747 USA

[3] Univ Paris Sud, Sorbonne Univ, Observ Paris, CNRS,Ecole Polytech, F-91128 Paris, France

[4] Univ Bergen, N-5020 Bergen, Norway

[5] Swedish Inst Space Phys, SE-75121 Uppsala, Sweden

[6] Univ Toulouse UPS, CNRS, CNES, Inst Rech Astrophys & Planetol, F-31027 Toulouse 4, France

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

[8] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

[9] Univ Colorado, Boulder, CO 80305 USA

[10] Southwest Res Inst, San Antonio, TX 78238 USA

[11] Denali Sci, Healy, AK 99743 USA

[12] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[13] KTH Royal Inst Technol, SE-11428 Stockholm, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 02期

关键词：

DIFFUSION REGION; ANOMALOUS RESISTIVITY; INSTABILITY; TURBULENCE; MAGNETOPAUSE; ONSET;

D O I：

10.1103/PhysRevLett.125.025103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of lower-hybrid drift waves driving electron heating and vortical flows in an electron-scale reconnection layer under a guide field. Electrons accelerated by the electrostatic potential of the waves exhibit perpendicular and nongyrotropic heating. The vortical flows generate magnetic field perturbations comparable to the guide field magnitude. The measurements reveal a new regime of electron-wave interaction and how this interaction modifies the electron dynamics in the reconnection layer.

引用

页数：6

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