Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-27T14:08:53.098Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamics of fast magnetosonic perturbations close to an X–X separatrix

Published online by Cambridge University Press:  01 June 1999

D. FARINA ,
I. KOTELNIKOV  and
R. POZZOLI
D. FARINA
Affiliation:
Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, EURATOM–ENEA–CNR Association, via Cozzi 53, 20125 Milano, Italy
I. KOTELNIKOV
Affiliation:
Budker Institute of Nuclear Physics, 630090, Novosibirsk, Russian Federation
R. POZZOLI
Affiliation:
Istituto Nazionale di Fisica della Materia, Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano, Italy
Get access Rights & Permissions [Opens in a new window]

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 wave 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.

Type
Research Article
Information
Journal of Plasma Physics , Volume 61 , Issue 5 , June 1999 , pp. 761 - 770
Copyright
1999 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)