PLASMA INSTABILITY AT THE INNER EDGE OF THE ACCRETION DISK .1.

Authors
TRIPATHY SC DWIVEDI CB DAS AC PRASANNA AR
Citation
Sc. Tripathy et al., PLASMA INSTABILITY AT THE INNER EDGE OF THE ACCRETION DISK .1., Journal of astrophysics and astronomy, 14(2), 1993, pp. 103-114
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Journal of astrophysics and astronomy → ACNP
ISSN journal
02506335
Volume
14
Issue
2
Year of publication
1993
Pages
103 - 114
Database
ISI
SICI code
0250-6335(1993)14:2<103:PIATIE>2.0.ZU;2-K
Abstract
In this paper, the analytical and numerical results of the stability a nalysis of the accretion disk at the inner boundary is presented. Incl uding the effect of finite conductivity in the disk dynamics, a simple calculation considering only the radial perturbation has been carried out. Within local approximation, it is concluded that the disk is sta ble to Kelvin-Helmholtz and resistive electromagnetic modes whereas th e magnetosonic mode can destabilise the disk structure.