X-ray outflows of active galactic nuclei warm absorbers: A 900 ks Chandra simulated spectrum
arXiv:1608.01935 · doi:10.1007/978-3-319-27965-7_28
Abstract
We report on the performance of the statistical, X-ray absorption lines identification procedure XLINE-ID. As illustration, it is used to estimate the time averaged gas density of a representative AGN's warm absorber (~K) X-ray simulated spectrum. The method relies on three key ingredients: (1) a well established emission continuum level; (2) a robust grid of photoionisation models spanning several orders of magnitude in gas density (), plasma column density (), and in ionization states; (3) theoretical curves of growth for a large set of atomic lines. By comparing theoretical and observed equivalent widths of a large set of lines, spanning highly ionized charge states from O, Ne, Mg, Si, S, Ar, and the Fe L-shell and K-shell, we are able to infer the location of the X-ray warm absorber.
18 pages, 10 figures. Accepted in book: Recent Advances in Fluid Dynamics with Environmental Applications, pp.391-409