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自动化与信息科学期刊
SJR: 0.275 SNIP: 0.59 CiteScore™: 0.8

ISSN 打印: 1064-2315
ISSN 在线: 2163-9337

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自动化与信息科学期刊

DOI: 10.1615/JAutomatInfScien.v48.i3.60
pages 54-64

Propagation of Incompressible Kink Modes in a Thin Magnetic Flux Tube

Yuriy P. Ladikov-Royev
Institute of Space Research of National Academy of Sciences of Ukraine and State Space Agency of Ukraine, Kiev, Ukraine
Oleg K. Cheremnykh
Institute of Space Research of National Academy of Sciences of Ukraine and State Space Agency of Ukraine, Kiev, Ukraine

ABSTRACT

The issue of incompressible kink modes propagation in the current carrying plasma cylinder with an azimuthal magnetic field and the vertical field surrounded by a current-free plasma and a homogeneous magnetic field is investigated in cylindrical system of coordinates. It is assumed that the plasma azimuthal magnetic field decreases over r−1 of the boundary of the plasma pinch. The dispersion equation which is the main result of this work was obtained in the approximation of a "thin" plasma tube. By this equation it was shown that the unstable modes are realized including a global kink mode with poloidal wave number m = 1. The results can be applied to interpreting the behavior of solar magnetic flux tubes.


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