2008/01/09 by A. Dorodnitsyn, T. Kallman, T. R. Kallman +2 · 45 citations
Physics and Astronomy · #Active galactic nucleus #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #Galaxy #Geometry #Mechanics #Meteorology #Optics #Outflow #Physics #Radiation pressure #Radiative cooling #Radiative transfer #Rotational symmetry #Spectral line #Torus #astro-ph
paper · pdf · doi:10.1086/529374
published in The Astrophysical Journal 675(1), L5-L8 (IOP Publishing) · ApJ Letters, accepted for publication
arxiv created 2008/01/09 · openalex publication_date 2008/02/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on time-dependent axisymmetric simulations of an X-ray-excited flow from a parsec-scale, rotating, cold torus around an active galactic nucleus. Our simulations account for radiative heating and cooling and radiation pressure force. The simulations follow the development of a broad biconical outflow induced mainly by X-ray heating. We compute synthetic spectra predicted by our simulations. The wind characteristics and the spectra support the hypothesis that a rotationally supported torus can serve as the source of a wind which is responsible for the warm absorber gas observed in the X-ray spectra of many Seyfert galaxies.