English

Super Eddington Slim Accretion Disks with Winds

High Energy Astrophysical Phenomena 2015-05-18 v1

Abstract

We construct Super-Eddington Slim Disks models around both stellar and super-massive black holes by allowing the formation of a porous layer with a reduced effective opacity. We show that at high accretion rates, the inner part of the disks become radiation pressure dominated. However, unlike the standard scenario in which the disks become thick, super-Eddington disks remain slim. In addition, they accelerate a significant wind with a "thick disk" geometry. We show that above about 1.5 times the standard critical mass accretion rate (needed to release the Eddington luminosity), the net luminosity released is above Eddington. At above about 5 times the standard critical rate, the central BH accretes more than the Eddington accretion rate. Above about 20 m-dot_crit, the disk remains slim but the wind becomes spherical, and the present model breaks down.

Keywords

Cite

@article{arxiv.1004.1797,
  title  = {Super Eddington Slim Accretion Disks with Winds},
  author = {Calanit Dotan and Nir J. Shaviv},
  journal= {arXiv preprint arXiv:1004.1797},
  year   = {2015}
}

Comments

10 pages, 10 figures, submitted to MNRAS

R2 v1 2026-06-21T15:09:00.433Z