Variable X-ray absorption in the mini-broad absorption line quasar PG 1126-041

Details Variable X-ray absorption in the mini-broad absorption line quasar PG 1126-041 Variable X-ray absorption in the mini-broad absorption line quasar PG 1126-041

2011-12-16

arxiv.org/abs/1112.3750v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages, 2 figures. Proceedings for a talk given at the "AGN winds in Charleston" conference, Charleston (SC), October 2011. T

Scientific paper

We present the results of a multi-epoch observational campaign on the mini-broad absorption line quasar (mini-BAL QSO) PG 1126-041 performed with XMM-Newton from 2004 to 2009. Time-resolved X-ray spectroscopy and simultaneous UV and X-ray photometry were performed on the most complete set of observations and on the deepest X-ray exposure of a mini-BAL QSO to date. Complex X-ray spectral variability, found on time scales of both months and hours, is best reproduced by means of variable and massive ionized absorbers along the line of sight. In the highest signal-to-noise observation, highly-ionized X-ray absorbing material outflowing much faster than the UV absorbing one is detected. This highly-ionized absorber is found to be variable on very short time scales of a few hours.

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