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X-ray Absorption in Radio-Quiet QSOs

W. N. Brandt·S. C. Gallagher·A. Laor·Beverley J. Wills
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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.

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W. N. Brandt, S. C. Gallagher, A. Laor, Beverley J. Wills. 1999-10-26. X-ray Absorption in Radio-Quiet QSOs. https://arxiv.org/abs/astro-ph/9910302

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