An Axisymmetric, Hydrodynamical Model for the Torus Wind in Active Galactic Nuclei. II. X‐Ray–Excited Funnel Flow

Abstract

We have calculated a series of models of outflows from the obscuring torus in active galactic nuclei (AGNs). Our modeling assumes that theinner face of a rotationally supported torus is illuminated and heatedby the intense X-rays from the inner accretion disk and black hole. As aresult of such heating, a strong biconical outflow is observed in oursimulations. We calculate three-dimensional hydrodynamical models,assuming axial symmetry and including the effects of X-ray heating,ionization, and radiation pressure. We discuss the behavior of a largefamily of these models, their velocity fields, mass fluxes, andtemperature, as functions of the torus properties and X-ray flux.Synthetic warm- absorber spectra are calculated, assuming pureabsorption, for sample models at various inclination angles andobserving times. We show that these models have mass fluxes and flowspeeds comparable to those inferred from observations of Seyfert 1 warmabsorbers, and that they can produce rich absorption-line spectra.