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| Paper: |
PHL 1811 Analogs: A Population of X-ray Weak Quasars |
| Volume: |
460, AGN Winds in Charleston |
| Page: |
42 |
| Authors: |
Wu, J.; Brandt, W. N.; Hall, P. B.; Gibson, R. R.; Richards, G. T.; Schneider, D. P.; Shemmer, O.; Just, D. W.; Schmidt, S. J. |
| Abstract: |
We report on a population of X-ray weak quasars with UV
emission-line properties similar to those of the remarkable quasar
PHL 1811. All radio-quiet PHL 1811 analogs are notably
X-ray weak by a mean factor of ≈ 13, with hints of heavy
X-ray absorption. Correlations between the X-ray
weakness and UV emission-line properties suggest that PHL 1811 analogs
may have extreme wind-dominated broad emission-line regions
(BELRs). We propose an AGN geometry that can potentially unify the
PHL 1811 analogs and the general population of weak-line quasars. |
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