Advection-Dominated Accretion Disks: Geometrically Slim or Thick?
arXiv:0909.4838 · doi:10.1093/pasj/61.6.1313
Abstract
We revisit the vertical structure of black hole accretion disks in spherical coordinates. By comparing the advective cooling with the viscous heating, we show that advection-dominated disks are geometrically thick, i.e., with the half-opening angle > 2Ï/5, rather than slim as supposed previously in the literature.
12 pages, 3 figures, accepted by PASJ