Deepest serendipitous survey of the intermediate galactic latitude from XMM-Newton

Abstract

The XMM-Newton Observatory has conducted many observations of the type I active galactic nucleus 1H0707-495. The 0.7 deg [superscript 2] field of view around the AGN was observed over the course of ∼10 years with a total exposure time of 3.75 Ms, allowing for the deepest ever serendipitous survey of intermediate galactic latitude. Combined data from the European Photon Imaging Camera (EPIC) gives the first X-ray "real-colour" image of this field with a limiting flux of 6.72 × 10[superscript -16] , 2.94 × 10[superscript -15] , and 1.14 × 10[superscript -14] ergs/cm[superscript 2] /sec in the 0.5-2, 2-4.5, and 4.5-12 keV, respectively. A total of 128 sources were detected with a photon count [greater than or equal to] 50 not including one arcmin surrounding 1H0707-495. The log(N)-log(S) relation in two bands show consistent slopes with previous surveys and models. Spectra are created and analyzed for the 30 brightest sources and an additional source of interest. Colour-colour diagrams were made using hardness ratios to examine the nature of sources that were too dim to study spectroscopically.