Catastrophe model for fast magnetic reconnection onset

被引：131

作者：

Cassak, PA ^{[1
]}

Shay, MA ^{[1
]}

Drake, JF ^{[1
]}

机构：

[1] Univ Maryland, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 23期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.95.235002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A catastrophe model for the onset of fast magnetic reconnection is presented that suggests why plasma systems with magnetic free energy remain apparently stable for long times and then suddenly release their energy. For a given set of plasma parameters there are generally two stable reconnection solutions: a slow (Sweet-Parker) solution and a fast (Alfvenic) Hall reconnection solution. Below a critical resistivity the slow solution disappears and fast reconnection dominates. Scaling arguments predicting the two solutions and the critical resistivity are confirmed with two-fluid simulations.

引用

页数：4

共 26 条

[1] A model for solar coronal mass ejections [J].