X-ray Absorption in Radio-Quiet QSOs
Abstract
Major flows of ionized gas are thought to be present in the nuclei of most luminous QSOs, and absorption by these flows often has a significant effect upon the observed X-ray continuum from the black hole region. We briefly discuss X-ray studies of this gas and attempts to determine its geometry, dynamics, and ionization physics. Our focus is on X-ray warm absorber QSOs, Broad Absorption Line QSOs, and soft X-ray weak QSOs. We also discuss some prospects for further study with the next generation of X-ray observatories.
Cite
@article{arxiv.astro-ph/9910302,
title = {X-ray Absorption in Radio-Quiet QSOs},
author = {W. N. Brandt and S. C. Gallagher and A. Laor and Beverley J. Wills},
journal= {arXiv preprint arXiv:astro-ph/9910302},
year = {2007}
}
Comments
10 pages, to appear in the proceedings of the Bologna conference on "X-ray Astronomy 1999: Stellar Endpoints, AGN, and the Diffuse X-ray Background" (Astroph. Lett. and Comm.), also available from http://www.astro.psu.edu/users/niel/papers/papers.html