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The cosmological properties of AGN in the XMM-Newton Hard Bright Survey
R. Della Ceca, A. Caccianiga, P. Severgnini +7
(ABRIDGED) We investigate here the XLF of absorbed (Nh between 4E21 and E24 cm-2) and unabsorbed (Nh < 4E21 cm-2) AGN, the fraction of absorbed AGN as a function of Lx (and z), the…
The candidate filament close to the 3C295 galaxy cluster: optical and X-ray spectroscopy
Valerio D'Elia, Fabrizio Fiore, Smita Mathur +1
We present a detailed analysis of the overdensity of X-ray sources colse to the 3C 295 galaxy cluster (z=0.46) to assess whether it is associated with a filament of the large-scale…
The XMM-Newton bright serendipitous survey. Identification and optical spectral properties
A. Caccianiga, P. Severgnini, R. Della Ceca +12
AIMS: We present the optical classification and redshift of 348 X-ray selected sources from the XMM-Newton Bright Serendipitous Survey (XBS) which contains a total of 400 objects (…
Searching for absorbed AGN in the 2XMM-Newton pre-release EPIC Serendipitous Source Catalogue
Elisabetta Memola, Alessandro Caccianiga, Filomena Cocchia +7
We aim to test a method of efficiently selecting X-ray obscured AGN in the 2XMM-Newton EPIC Serendipitous Source Catalogue. By means of a strong correlation established using the X…
The HELLAS2XMM survey.VIII. Optical identifications of the extended sample
F. Cocchia, F. Fiore, C. Vignali +14
(Abridged) We present the results of the photometric and spectroscopic identification of 110 hard X-ray selected sources (6e-15<F(2-10 keV)<4e-14 cgs) from 5 additional XMM-Newton…
The Bright Side of the Hard X-ray Sky: The XMM-Newton Bright Survey
R. Della Ceca, A. Caccianiga, P. Severgnini +3
We discuss here the main goals and some interesting results of the "XMM-Newton Bright Serendipitous Survey", a research program conducted by the XMM-Newton Survey Science Center in…