Energy Partition in Magnetic Reconnection in Earth's Magnetotail

被引：87

作者：

Eastwood, J. P. ^{[1
]}

Phan, T. D. ^{[2
]}

Drake, J. F. ^{[3
]}

Shay, M. A. ^{[4
]}

Borg, A. L. ^{[5
]}

Lavraud, B. ^{[6
,7
]}

Taylor, M. G. G. T. ^{[8
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

[2] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[3] Univ Maryland, Inst Res Elect & Appl Phys, Dept Phys, College Pk, MD 20742 USA

[4] Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA

[5] Norwegian Def Res Estab FFI, NO-2007 Kjeller, Norway

[6] Univ Toulouse UPS, Inst Rech Astrophys & Planetol, F-31028 Toulouse 4, France

[7] CNRS, UMR 5277, Toulouse, France

[8] ESA ESTEC, NL-2200 AG Noordwijk, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 22期

基金：

美国国家科学基金会;

关键词：

FIELD;

D O I：

10.1103/PhysRevLett.110.225001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The partition of energy flux in magnetic reconnection is examined experimentally using Cluster satellite observations of collisionless reconnection in Earth's magnetotail. In this plasma regime, the dominant component of the energy flux is ion enthalpy flux, with smaller contributions from the electron enthalpy and heat flux and the ion kinetic energy flux. However, the Poynting flux is not negligible, and in certain parts of the ion diffusion region the Poynting flux in fact dominates. Evidence for earthward-tailward asymmetry is ascribed to the presence of Earth's dipole fields.

引用

页数：5

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