2 papers
astro-ph2000
A Note on Hydrodynamic Viscosity and Selfgravitation in Accretion Disks
Wolfgang J. Duschl, Peter A. Strittmatter, Peter L. Biermann
We propose a generalized accretion disk viscosity prescription based on hydrodynamically driven turbulence at the critical effective Reynolds number. This approach is consistent wi…
astro-ph1997
Viscosity in Selfgravitating Accretion Disks
W. J. Duschl, Peter A. Strittmatter, Peter L. Biermann
We show that the standard model for geometrically thin accretion disks (alpha-disks) leads to inconsistencies if selfgravity plays a role. This problem arises from the parametrizat…