Magnetic reconnection: Sweet-Parker versus Petschek

被引：92

作者：

Kulsrud, RM ^{[1
]}

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

EARTH PLANETS AND SPACE | 2001年 / 53卷 / 06期

关键词：

Magnetic Reconnection; Diffusive Region; Reconnection Rate; Anomalous Resistivity; Slow Shock;

D O I：

10.1186/BF03353251

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The two theories for magnetic reconnection, one of Sweet and Parker, and the other of Petschek, are reconciled by exhibiting an extra condition in that of Petschek which reduces his theory to that of Sweet and Parker, provided that the resistivity is constant in space. On the other hand, if the resistivity is enhanced by instabilities, then the reconnection rate of both theories is increased substantially, but Petschek's rate can be faster. A different formula from the usual one is presented for enhanced Petschek reconnection.

引用

页码：417 / 422

页数：6

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