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Probing broad absorption line quasar outflows: X-ray insights |
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| Authors: | SC Gallagher WN Brandt G Chartas GP Garmire RM Sambruna |
| Institution: | aCenter for Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA bDepartment of Astronomy & Astrophysics, The Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA cDepartment of Physics and Astronomy and School of Computational Sciences, MS 3F3, 4400 University Drive, George Mason University, Fairfax, VA 22030, USA |
| Abstract: | Energetic outflows appear to occur in conjunction with active mass accretion onto supermassive black holes. These outflows are most readily observed in the  10% of quasars with broad absorption lines, where the observer’s line of sight passes through the wind. Until fairly recently, the paucity of X-ray data from these objects was notable, but now sensitive hard-band missions such as Chandra and XMM-Newton are routinely detecting broad absorption line quasars. The X-ray regime offers qualitatively new information for the understanding of these objects, and these new results must be taken into account in theoretical modeling of quasar winds. |
| Keywords: | Quasars Absorption lines Outflows X-ray observations |
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