Magnetorotational Instability in Weakly Ionised, Stratified Accretion Discs
Abstract
We present a linear analysis of the vertical structure and growth of the magnetorotational instability in weakly ionised, stratified accretion discs. The method includes the effects of the magnetic coupling, the conductivity regime of the fluid and the strength of the magnetic field, which is initially vertical. The conductivity is treated as a tensor and assumed constant with height.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- August 2004
- DOI:
- 10.1023/B:ASTR.0000045049.76937.48
- arXiv:
- arXiv:astro-ph/0307109
- Bibcode:
- 2004Ap&SS.292..451S
- Keywords:
-
- accretion discs;
- instabilities;
- magnetohydrodynamics;
- Astrophysics
- E-Print:
- 6 pages, 3 figures, latex, kluwer.cls. To appear in the proceedings of "Magnetic fields and star formation: Theory versus observations", Madrid, April 21-25 2003