Publications [#66594] of Jeffrey L. Krolik

Papers Published

1. Agol, E. and Krolik, J., Photon damping of waves in accretion disks, Astrophys. J. (USA), vol. 507 no. 1 (1998), pp. 304 - 15 [306332]
   (last updated on 2007/04/16)

   Abstract:
   MHD turbulence is generally believed to have two important functions in accretion disks: it transports angular momentum outward, and the energy in its shortest wavelength modes is dissipated into the heat that the disks radiate. The authors examine a pair of mechanisms that may play an important role in regulating the amplitude and spectrum of this turbulence: photon diffusion and viscosity. They demonstrate that in radiation pressure-dominated disks, photon damping of compressive MHD waves is so rapid that it likely dominates all other dissipation mechanisms

   Keywords:
   accretion disks;astrophysical fluid dynamics;galactic nuclei;magnetohydrodynamics;stars;turbulence;