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The XMM–Newton/2dF survey – IV. The X-ray spectral properties of the hard sources |
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| Authors: | I Georgantopoulos A Georgakakis A Akylas G C Stewart O Giannakis T Shanks S Kitsionas |
| Institution: | Institute of Astronomy and Astrophysics, National Observatory of Athens, I. Metaxa &B. Pavlou, Penteli, 15236 Athens, Greece;Physics Department, University of Athens, Panepistimiopolis, Zografos, 15783 Athens, Greece;Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH;Physics Department, South Road, Durham DH1 3LE |
| Abstract: | |
| Keywords: | galaxies: active quasars: general X-rays: general |