Volume 376, Number 2, September II 2001
|Page(s)||387 - 392|
|Section||Cosmology (including clusters of galaxies)|
|Published online||15 September 2001|
An XMM-Newton view of the serendipitous sources in the PKS0312-770 field*
XMM-Newton SOC, Space Science Dept., ESA, ESTEC, 2200AG Noordwijk, The Netherlands
2 XMM-Newton SOC, Space Science Dept., ESA, Villafranca Satellite Tracking Station, 28080 Madrid, Spain
Corresponding author: D. H. Lumb, firstname.lastname@example.org
Accepted: 5 July 2001
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 ( cm-2) AGN. We detect 52 sources (45 previously unreported) at a limiting flux of ~ ergs cm-2 s-1 in the 0.5-2 keV band. The Log N-Log S 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.
© ESO, 2001
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