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X-ray Spectroscopy of BAL and Mini-BAL QSOs

S. C. Gallagher·W. N. Brandt·G. Chartas·G. P. Garmire
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Abstract

BAL QSOs are notoriously faint X-ray sources, presumably due to extreme intrinsic absorption. However, several objects have begun to appear through the obscuration with recent X-ray observations by Chandra and ASCA. Where enough counts are present for X-ray spectroscopy, the signatures of absorption are clear. The evidence is also mounting that the absorbers are more complicated than previous simple models assumed; current absorber models need to be extended to the high-luminosity, high-velocity, and high-ionization regime appropriate for BAL QSOs.

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S. C. Gallagher, W. N. Brandt, G. Chartas, G. P. Garmire. 2001-05-18. X-ray Spectroscopy of BAL and Mini-BAL QSOs. https://arxiv.org/abs/astro-ph/0105332

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