Computer Science
Scientific paper
Feb 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat..73520091g&link_type=abstract
VizieR On-line Data Catalog: J/MNRAS/352/91. Originally published in: 2004MNRAS.352...91G
Computer Science
Radio Sources, Qsos, Active Gal. Nuclei
Scientific paper
We present an analysis of the X-ray spectral properties of 61 hard X-ray (2-8keV) selected sources from the bright XMM-Newton/2dF (f(2-8keV)>10-14erg/cm2/s) survey. This comprises nine XMMNewton pointings in the North Galactic Pole region (~1.6deg2) and overlaps with the SDSS, 2QZ and 2dFGRS surveys. Our sources contribute about 50 per cent of the 2-10keV X-ray background down to the flux limit of 10-14erg/cm2/s. The hardness ratio distribution of the sample suggests a deficit of heavily absorbed sources. Spectroscopic identifications exist for 34 sources.
(1 data file).
Akylas Athanassios
Georgakakis Antonis
Georgantopoulos Ioannis
Giannakis O.
Kitsionas Spyridon
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