PLASMA INSTABILITY AT THE INNER EDGE OF THE ACCRETION DISK .2.

Citation
Sc. Tripathy et al., PLASMA INSTABILITY AT THE INNER EDGE OF THE ACCRETION DISK .2., Journal of astrophysics and astronomy, 14(3-4), 1993, pp. 167-179
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
0250-6335
Volume
14
Issue
3-4
Year of publication
1993
Pages
167 - 179
Database
ISI
SICI code
0250-6335(1993)14:3-4<167:PIATIE>2.0.ZU;2-X
Abstract
A two-dimensional instability analysis for a magneto-keplerian disk fl ow around a compact object is presented here. Using the eigenvalue tec hnique, linearly coupled perturbed equations have been numerically sol ved within the local approximation. It is concluded that Kelvin-Helmho ltz, magnetosonic (fast and slow) and resistive electromagnetic modes exist. However, only the magnetosonic mode can destabilise the disk st ructure. Further, we discuss the properties of different modes as a fu nction of disk parameters and plot the eigenmode structures for differ ent physical quantities.