THE RADIAL-AZIMUTHAL INSTABILITY OF AN ISOTHERMAL MAGNETIZED ACCRETION DISK

Authors
YANG LT WU SP LU Y WU XB
Citation
Lt. Yang et al., THE RADIAL-AZIMUTHAL INSTABILITY OF AN ISOTHERMAL MAGNETIZED ACCRETION DISK, Communications in Theoretical Physics, 30(2), 1998, pp. 269-274
Citations number
14
Categorie Soggetti
Physics
Journal title
Communications in Theoretical Physics → ACNP
ISSN journal
02536102
Volume
30
Issue
2
Year of publication
1998
Pages
269 - 274
Database
ISI
SICI code
0253-6102(1998)30:2<269:TRIOAI>2.0.ZU;2-T
Abstract
The radial-azimuthal instability of an isothermal magnetized accretion disk is examined in this paper. We find that the azimuthal perturbati on enhances the instability of the magneto-acoustic and non-axisymmetr ic modes. The magnetic field induces and enhances the instability of m agneto-acoustic modes, but stabilizes the non-axisymmetric modes in th e outer disk. The viscous modes are always stable. The instability of magneto-acoustic modes are dominant in this disk.