Scaling of Sweet-Parker reconnection with secondary islands

被引：99

作者：

Cassak, P. A. ^{[1
]}

Shay, M. A. ^{[2
]}

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

机构：

[1] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA

[2] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

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

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

来源：

PHYSICS OF PLASMAS | 2009年 / 16卷 / 12期

基金：

美国国家科学基金会;

关键词：

corona; energy storage; magnetic reconnection; plasma collision processes; plasma magnetohydrodynamics; plasma simulation; MAGNETIC RECONNECTION; SOLAR; FIELDS; MODEL;

D O I：

10.1063/1.3274462

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：

Sweet-Parker (collisional) magnetic reconnection at high Lundquist number is modified by secondary islands. Daughton [Phys. Rev. Lett. 103, 065004 (2009)] suggested the Sweet-Parker model governs the fragmented current sheet segments. If true, the reconnection rate would increase by the square root of the number of secondary islands. High Lundquist number resistive magnetohydrodynamic simulations are presented which agree, in a time-averaged sense, with the predicted scaling. This result may have important implications for energy storage before a solar eruption and its subsequent release.

引用

页数：4

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