Multidimensional modelling of X-ray spectra for AGN accretion disc outflows |
| |
Authors: | S. A. Sim K. S. Long L. Miller T. J. Turner |
| |
Affiliation: | Max-Planck-Institut für Astrophysik, Karl-Schwarzschildstr. 1, 85748 Garching, Germany;Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA;Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH;Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA;Astrophysics Science Division, NASA/GSFC, Greenbelt, MD 20771, USA |
| |
Abstract: | We use a multidimensional Monte Carlo code to compute X-ray spectra for a variety of active galactic nucleus (AGN) disc–wind outflow geometries. We focus on the formation of blueshifted absorption features in the Fe K band and show that line features similar to those which have been reported in observations are often produced for lines of sight through disc–wind geometries. We also discuss the formation of other spectral features in highly ionized outflows. In particular, we show that, for sufficiently high wind densities, moderately strong Fe K emission lines can form and that electron scattering in the flow may cause these lines to develop extended red wings. We illustrate the potential relevance of such models to the interpretation of real X-ray data by comparison with observations of a well-known AGN, Mrk 766. |
| |
Keywords: | radiative transfer methods: numerical galaxies: active X-rays: galaxies |
|
|