The Compton-thick quasar at the heart of the high-redshift giant radio galaxy 6C0905+39
Abstract
Our XMM-Newton spectrum of the giant, high-redshift (z = 1.88) radio galaxy 6C0905+39 shows that it contains one of the most powerful, high redshift, Compton-thick quasars known. Its spectrum is very hard above 2keV. The steep XMM-Newton spectrum below that energy is shown to be due to extended emission from the radio bridge using Chandra data. The nucleus of 6C0905+39 has a column density of 3.5+1.4-0.4 × 1024cm-2 and absorption-corrected X-ray luminosity of 1.7+0.9-0.1 × 1045ergs-1 in the 2-10keV band. A lower redshift active galaxy in the same field, SDSS J090808.36+394313.6, may also be Compton thick.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- March 2008
- DOI:
- 10.1111/j.1745-3933.2008.00448.x
- arXiv:
- arXiv:0801.3341
- Bibcode:
- 2008MNRAS.385L.125E
- Keywords:
-
- quasars: individual: 6C0905;
- Astrophysics
- E-Print:
- 5 pages, 5 figures, accepted to MNRAS