An XMM-Newton view of the serendipitous sources in the PKS0312-770 field

Abstract

We describe an XMM-Newton observation of the PKS0312-770 field, which facilitates the spectral analysis of serendipitous sources previously detected by CHANDRA. The combination of larger effective area and longer exposure duration allows a significant increase in detected photons, and a lower limit in source detection sensitivity. In particular the hard X-ray normal galaxy unveiled by Fiore et al (2000) is most likely explained as a moderately absorbed (N_H ~ 1e22 cm^-2) AGN. We detect 52 sources (45 previously unreported) at a limiting flux of ~2e-15 cgs in the 0.5-2keV band. The LogN-LogS curve is consistent with that derived from by XMM-Newton observations of the Lockman Hole field. The flux determinations allow to check for any inconsistency between the calibrations of the two observatories, which is discussed.

6 pages, 6 figures

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• The Hellas2XMM survey: III. Multiwavelength observations of hard X-ray selected sources in the PKS 0312-77 field
• The 5 - 10 keV AGN luminosity function at 0.01<z<4.0
• Properties of the background of EPIC-pn onboard XMM-Newton
• Emission-line stars discovered in the UKST H-alpha survey of the Large Magellanic Cloud; Part 1: Hot stars
• Exploring the spectral properties of faint hard X-ray sources with XMM-Newton
• The Gould's Belt Very Large Array Survey V: The Perseus Region