The impact of accretion disc winds on the X-ray spectrum of AGN -I. xscort

摘要: The accretion disc in active galactic nucleus (AGN) is expected to produce strong outflows, particular an ultraviolet (UV)-line-driven wind. Several observed spectral features, including the soft X-ray excess, have been associated with However, current models of spectrum AGN through wind, known provide a good fit data, are ad hoc their treatment outflow velocity and density wind material. In order address these limitations we adopt numerical computational method that links series radiative transfer calculations, incorporating effect global field self-consistent manner [XSTAR Simulation Chain for Outflows Radiative Transfer (XSCORT)]. We present example spectra from XSCORT code allow us examine shape seen smooth terminal 0.3c, as appropriate UV-line-driven calculate range different acceleration laws, distributions, total column densities ionization parameters, but all sharp features contrast strongly both previous 'smeared absorption' models, smoothness excess. This rules out absorption radiatively driven origin though larger velocity, possibly material magnetically outflow/jet, may recover