On the instability of thick accretion disks
Abstract
A general method, based on a variational principle, is developed for the study of adiabatic oscillations in a gas cloud with negligible self-gravity, rotating in an external gravitational field. Second order virial equations are obtained. As an example, the formalism is applied to disk models with an equation of state wherein p is proportional to rho to the 4/3 power; such disks turn out to be unstable.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 1982
- DOI:
- 10.1086/160424
- Bibcode:
- 1982ApJ...262..322H
- Keywords:
-
- Accretion Disks;
- Astrophysics;
- Dynamic Stability;
- Stellar Mass Accretion;
- Adiabatic Conditions;
- Equations Of State;
- Virial Theorem;
- Astrophysics