Is the "out-of-plane" magnetic perturbation always a quadrupole in the Hall-mediated magnetic reconnection?

被引：18

作者：

Bian, N. H. ^{[1
]}

Vekstein, G. ^{[1
]}

机构：

[1] Univ Manchester, Sch Phys & Astron, Manchester M60 1QD, Lancs, England

来源：

PHYSICS OF PLASMAS | 2007年 / 14卷 / 12期

关键词：

11;

D O I：

10.1063/1.2820904

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：

The structure of the "out-of-plane" component of the magnetic field is studied from the two-fluid description of magnetic reconnection via resistive tearing instability in a force-free field. Odd parity of the out-of-plane field component signifies a quadrupolar structure, which is usually taken as a signature of the Hall-mediated magnetic reconnection. Here we argue that the structure of the out-of-plane magnetic perturbation is not uniquely specified by the regime of reconnection. Thus, it can be quadrupolar in the standard magnetohydrodynamics (MHD) regime of magnetic reconnection, while being nonquadrupolar in the Hall-MHD regimes. (C) 2007 American Institute of Physics.

引用

页数：4

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