학술논문
Self-consistent equilibrium of a helical magnetic flux rope in a finite-pressure plasma.
Document Type
Article
Source
Subject
*MAGNETIC flux
*EQUILIBRIUM
*PLASMA pressure
*MAGNETIC fields
*CORONAL mass ejections
*ROPE
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Language
ISSN
1070-664X
Abstract
We present an analytical model of the self-consistent equilibrium of a magnetic flux rope, which is obtained in cylindrical geometry. The equilibrium quantities, namely, the azimuthal magnetic field and plasma pressure, are determined in a self-consistent way through the current density, which is derived as a solution of a nonlinear equation. By minimizing the energy functional, it was shown that the constrained equilibrium state is stable. The obtained results are also applicable to the cylindrical tokamak magnetic configurations. It is shown that the analytically predicted radial profiles of equilibrium quantities are in good agreement with the experimental data. [ABSTRACT FROM AUTHOR]