Electron acceleration in three-dimensional magnetic reconnection with a guide field

被引：91

作者：

Dahlin, J. T. ^{[1
]}

Drake, J. F. ^{[1
,2
,3
,4
]}

Swisdak, M. ^{[1
]}

机构：

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

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[3] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA

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

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 10期

基金：

美国国家科学基金会;

关键词：

PARTICLE-ACCELERATION; SIMULATIONS; GENERATION; FORCE; LINES;

D O I：

10.1063/1.4933212

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Kinetic simulations of 3D collisionless magnetic reconnection with a guide field show a dramatic enhancement of energetic electron production when compared with 2D systems. In the 2D systems, electrons are trapped in magnetic islands that limit their energy gain, whereas in the 3D systems the filamentation of the current layer leads to a stochastic magnetic field that enables the electrons to access volume-filling acceleration regions. The dominant accelerator of the most energetic electrons is a Fermi-like mechanism associated with reflection of charged particles from contracting field lines. (C) 2015 AIP Publishing LLC.

引用

页数：5

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