Electron Heating at Kinetic Scales in Magnetosheath Turbulence

被引：53

作者：

Chasapis, Alexandros ^{[1
]}

Matthaeus, W. H. ^{[1
]}

Parashar, T. N. ^{[1
]}

LeContel, O. ^{[2
]}

Retino, A. ^{[2
]}

Breuillard, H. ^{[2
]}

Khotyaintsev, Y. ^{[3
]}

Vaivads, A. ^{[3
]}

Lavraud, B. ^{[4
,5
]}

Eriksson, E. ^{[3
]}

Moore, T. E. ^{[6
]}

Burch, J. L. ^{[7
]}

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

Lindqvist, P. -A. ^{[9
]}

Ergun, R. E. ^{[10
]}

Marklund, G. ^{[9
]}

Goodrich, K. A. ^{[10
]}

Wilder, F. D. ^{[10
]}

Chutter, M. ^{[8
]}

Needell, J. ^{[8
]}

Rau, D. ^{[8
]}

Dors, I. ^{[8
]}

Russell, C. T. ^{[11
]}

Le, G. ^{[6
]}

Magnes, W. ^{[12
]}

Strangeway, R. J. ^{[11
]}

Bromund, K. R. ^{[6
]}

Leinweber, H. K. ^{[11
]}

Plaschke, F. ^{[12
]}

Fischer, D. ^{[12
]}

Anderson, B. J. ^{[13
]}

Pollock, C. J. ^{[6
]}

Giles, B. L. ^{[6
]}

Paterson, W. R. ^{[6
]}

Dorelli, J. ^{[6
]}

Gershman, D. J. ^{[6
]}

Avanov, L. ^{[6
]}

Saito, Y. ^{[14
]}

机构：

[1] Univ Delaware, Newark, DC USA

[2] Lab Phys Plasmas, Paris, France

[3] Swedish Inst Space Phys, Uppsala, Sweden

[4] Univ Toulouse UPS, Inst Rech Astrophys & Plantol, Toulouse, France

[5] Ctr Natl Rech Sci, UMR 5277, Toulouse, France

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

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

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

[9] Royal Inst Technol, Stockholm, Sweden

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

[11] Univ Calif Los Angeles, Los Angeles, CA USA

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

[13] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA

[14] Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan

来源：

ASTROPHYSICAL JOURNAL | 2017年 / 836卷 / 02期

关键词：

acceleration of particles; magnetic reconnection; plasmas; turbulence; FAST-SOLAR-WIND; MAGNETOHYDRODYNAMIC TURBULENCE; MAGNETOSPHERIC MULTISCALE; MAGNETIC RECONNECTION; PLASMA; INSTRUMENT; FIELD; MMS;

D O I：

10.3847/1538-4357/836/2/247

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a statistical study of coherent structures at kinetic scales, using data from the Magnetospheric Multiscale mission in the Earth's magnetosheath. We implemented the multi-spacecraft partial variance of increments (PVI) technique to detect these structures, which are associated with intermittency at kinetic scales. We examine the properties of the electron heating occurring within such structures. We find that, statistically, structures with a high PVI index are regions of significant electron heating. We also focus on one such structure, a current sheet, which shows some signatures consistent with magnetic reconnection. Strong parallel electron heating coincides with whistler emissions at the edges of the current sheet.

引用

页数：8

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