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arXiv · 0801.3341

The Compton-thick quasar at the heart of the high-redshift giant radio galaxy 6C 0905+39

M. C. Erlund·A. C. Fabian·Katherine M. Blundell·Carolin S. Crawford
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Abstract

Our XMM-Newton spectrum of the giant, high-redshift (z=1.88) radio galaxy 6C 0905+39 shows that it contains one of the most powerful, high-redshift, Compton-thick quasars known. Its spectrum is very hard above 2 keV. The steep XMM spectrum below that energy is shown to be due to extended emission from the radio bridge using Chandra data. The nucleus of 6C 0905+39 has a column density of 3.5 (+1.4,-0.4) X 10^24 cm^-2 and absorption-corrected X-ray luminosity of 1.7 (+0.9,-0.1) X 10^45 erg/s in the 2-10 keV band. A lower redshift active galaxy in the same field, SDSS J090808.36+394313.6, may also be Compton-thick.

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M. C. Erlund, A. C. Fabian, Katherine M. Blundell, Carolin S. Crawford. 2008-01-22. The Compton-thick quasar at the heart of the high-redshift giant radio galaxy 6C 0905+39. https://doi.org/10.1111/j.1745-3933.2008.00448.x

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