The structure of magnetosonic perturbations around a pair of X lines of a toroidal magnetic configuration is analysed in the framework of ideal MHD, by means of a WKB technique. The conditions for wave trapping are investigated. It is shown that the ware equation for the displacement is separable in the vicinity of the X lines. The relevant eigenvalues and the different types of ray trajectories are discussed.
Dynamics of fast magnetosonic perturbations close to an X-X separatrix
Farina D;
1999
Abstract
The structure of magnetosonic perturbations around a pair of X lines of a toroidal magnetic configuration is analysed in the framework of ideal MHD, by means of a WKB technique. The conditions for wave trapping are investigated. It is shown that the ware equation for the displacement is separable in the vicinity of the X lines. The relevant eigenvalues and the different types of ray trajectories are discussed.File in questo prodotto:
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