Advection-Dominated Accretion Disks: Geometrically Slim or Thick?
High Energy Astrophysical Phenomena
2015-05-14 v1
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 > 2\pi/5, rather than slim as supposed previously in the literature.
Keywords
Cite
@article{arxiv.0909.4838,
title = {Advection-Dominated Accretion Disks: Geometrically Slim or Thick?},
author = {Wei-Min Gu and Li Xue and Tong Liu and Ju-Fu Lu},
journal= {arXiv preprint arXiv:0909.4838},
year = {2015}
}
Comments
12 pages, 3 figures, accepted by PASJ