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- Title
On the theory of transversally small-scale modes in the cylindrical plasma column.
- Authors
Cheremnykh, O.
- Abstract
The equation of small oscillations for a circular, cross-section plasma column with a helical magnetic field is obtained. It is shown that this equation is equivalent to the Hain-Lust equation. However, it has a much simpler form. The equation makes it possible to obtain a number of previously known results and to analyze transversally small-scale MHD perturbations. The criterion for the stability of these modes and the expression for the maximum increment are found. The areas of propagation of stable and unstable modes are defined. The obtained results can be used to interpret the behavior of solar magnetic tubes.
- Subjects
CYLINDRICAL plasmas; PLASMA oscillations; PLASMA magnetohydrodynamics; NONUNIFORM plasmas; BALLOONING instability; PLASMA equilibrium; SOLAR magnetic fields
- Publication
Kinematics & Physics of Celestial Bodies, 2015, Vol 31, Issue 5, p213
- ISSN
0884-5913
- Publication type
Article
- DOI
10.3103/S0884591315050025