Relativistic slim disks with vertical structure
Abstract
We report on a scheme for incorporating vertical radiative energy transport into a fully relativistic, Kerrmetric model of optically thick, advective, transonic alpha disks. Our code couples the radial and vertical equations of the accretion disk. The flux was computed in the diffusion approximation, and convection is included in the mixinglength approximation. We present the detailed structure of this "twodimensional" slimdisk model for α = 0.01. We then calculated the emergent spectra integrated over the disk surface. The values of surface density, radial velocity, and the photospheric height for these models differ by 20%30% from those obtained in the polytropic, heightaveraged slim disk model considered previously. However, the emission profiles and the resulting spectra are quite similar for both types of models. The effective optical depth of the slim disk becomes lower than unity for high values of the alpha parameter and for high accretion rates.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 March 2011
 DOI:
 10.1051/00046361/201015256
 arXiv:
 arXiv:1006.4309
 Bibcode:
 2011A&A...527A..17S
 Keywords:

 black holes physics;
 accretion;
 accretion disks;
 Astrophysics  High Energy Astrophysical Phenomena
 EPrint:
 15 pages, 18 figures (2 new), A&