Calculations in the theory of tearing instability

Calculations in the theory of tearing instability
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撕裂不稳定性理论的计算

DOI:
10.1088/1742-6596/1100/1/012003
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发表时间:
2018
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
N. Loureiro
N. Loureiro
中科院分区:
--
文献类型:
--
作者:
S. Boldyrev;N. Loureiro

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最近的研究表明,撕裂不稳定性可能在磁湍流中起着重要的作用。在这项工作中,我们回顾了在任意撕裂参数的一般情况下的磁流体力学撕裂不稳定性的理论,这是相关的湍流中的应用。我们讨论了一个详细的推导结果的标准哈里斯配置文件,并伴随着它的推导结果为一个鲜为人知的正弦形配置文件。我们特别注意内部方程的精确解,这是撕裂不稳定性理论的中心结果。我们还简要地讨论了剪切流对磁结构中撕裂不稳定性的影响。我们的介绍是独立的,我们希望它能被那些不是磁场重联专家的等离子体湍流研究人员所接受。
Recent studies have suggested that the tearing instability may play a significant role in magnetic turbulence. In this work we review the theory of the magnetohydrodynamic tearing instability in the general case of an arbitrary tearing parameter, which is relevant for applications in turbulence. We discuss a detailed derivation of the results for the standard Harris profile and accompany it by the derivation of the results for a lesser known sine-shaped profile. We devote special attention to the exact solution of the inner equation, which is the central result in the theory of tearing instability. We also briefly discuss the influence of shear flows on tearing instability in magnetic structures. Our presentation is self-contained; we expect it to be accessible to researchers in plasma turbulence who are not experts in magnetic reconnection.
DOI: 10.3847/1538-4357/aa9754
发表时间: 2017-07
期刊: The Astrophysical Journal
影响因子: --
作者:
N. Loureiro;S. Boldyrev
通讯作者: N. Loureiro;S. Boldyrev
DOI: 10.1088/0004-637x/807/1/39
发表时间: 2014-03
期刊: The Astrophysical Journal
影响因子: --
作者:
B. Chandran;A. Schekochihin;A. Mallet
通讯作者: B. Chandran;A. Schekochihin;A. Mallet
DOI: 10.3847/1538-4357/aa74e0
发表时间: 2017-06-20
影响因子: 4.9
作者:
Chen, C. H. K.;Boldyrev, S.
通讯作者: Boldyrev, S.