TRANSFORMATION OF MHD MODES NEAR MAGNETIC SEPARATRIX SURFACES

被引：22

作者：

BULANOV, SV ^{[1
]}

SHASHARINA, SG ^{[1
]}

PEGORARO, F ^{[1
]}

机构：

[1] SCUOLA NORMALE SUPER PISA,I-56126 PISA,ITALY

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1992年 / 34卷 / 01期

关键词：

D O I：

10.1088/0741-3335/34/1/002

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 linear propagation of magnetosonic and of shear Alfven waves is considered in a magnetic configuration with an X-line and a parallel (along the X-line) magnetic field B parallel-to. The two modes are decoupled both in the limits of zero and of infinite B parallel-to, whereas for finite B parallel-to they transform one into the other. The spatial structure of the current densities induced by this transformation is examined in the small and in the large B parallel-to limit. In both limits the induced currents exhibit, either at the separatrices or at the X-line, singular structures which can be associated with the formation of current sheets.

引用

页码：33 / 48

页数：16

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