X-raying the Winds of Luminous Active Galaxies
W.N. Brandt, G. Chartas, S.C. Gallagher, R.R. Gibson, B.P. Miller
TL;DR
This paper reviews recent X-ray observational findings on winds in luminous active galactic nuclei, highlighting their role in galaxy feedback and discussing specific absorption features and future research prospects.
Contribution
It provides a synthesis of recent X-ray observations of AGN winds, emphasizing their significance in galaxy evolution and identifying key unresolved issues.
Findings
Relations between X-ray and UV absorption in BAL quasars
X-ray absorption in radio-loud BAL quasars
Evidence for relativistic iron K BALs in bright quasars
Abstract
We briefly describe some recent observational results, mainly at X-ray wavelengths, on the winds of luminous active galactic nuclei (AGNs). These winds likely play a significant role in galaxy feedback. Topics covered include (1) Relations between X-ray and UV absorption in Broad Absorption Line (BAL) and mini-BAL quasars; (2) X-ray absorption in radio-loud BAL quasars; and (3) Evidence for relativistic iron K BALs in the X-ray spectra of a few bright quasars. We also mention some key outstanding problems and prospects for future advances; e.g., with the International X-ray Observatory (IXO).
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