| |
 |
| Paper: |
XMM observations of the BAL QSO LBQS 2212-1759 |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
187 |
| Authors: |
Clavel, J.; Schartel, N.; Tomas, L. |
| Abstract: |
The Broad Absorption Line Quasar (BALQSO) LBQS 2212-1759 was observed with XMM-Newton for 115 ks. Despite its large optical brightness, the quasar is not detected in neither of the three X-ray XMM telescopes. The very long exposure time, coupled with the exceptionally low level of background during the observation and the combined large effective area of the three XMM telescopes yield very stringent upper limits on the X-ray flux of LBQS 2212-1759. For reasonable values of the 0.1-10 keV and optical-to-X-ray spectral indices, this translates into a stringent lower limit on the absorbing column density in front of the X-ray source. This confirms the suspicion that BALQSO are heavily absorbed sources. The serendipitous content of the deep exposure of the 30 arcmin field around LBQS 2212-1759 is also analysed. |
|
|
|
|
|
