AGN obscuration through dusty infrared dominated flows. II. Multidimensional, radiation-hydrodynamics modeling
Abstract
We explore a detailed model in which the active galactic nucleus (AGN) obscuration results from the extinction of AGN radiation in a global flow driven by the pressure of infrared radiation on dust grains. We assume that external illumination by UV and soft X-rays of the dusty gas located at approximately 1pc away from the supermassive black hole is followed by a conversion of such radiation into IR. Using 2.5D, time-dependent radiation hydrodynamics simulations in a flux-limited diffusion approximation we find that the external illumination can support a geometrically thick obscuration via outflows driven by infrared radiation pressure in AGN with luminosities greater than and Compton optical depth, .
Cite
@article{arxiv.1111.2103,
title = {AGN obscuration through dusty infrared dominated flows. II. Multidimensional, radiation-hydrodynamics modeling},
author = {A. Dorodnitsyn and T. Kallman and G. S. Bisnovatyi-Kogan},
journal= {arXiv preprint arXiv:1111.2103},
year = {2012}
}
Comments
28 pages, 7 figures, version accepted to ApJ