The Subaru/XMM-Newton Deep Survey (SXDS) - III. X-ray data

We present the X-ray source catalog in the Subaru/XMM-Newton deep survey. A continuous area of 1.14 deg2 centered at -->R .A . = 02h18m and -->decl . = − 05° is mapped by seven pointings with XMM-Newton covering the 0.2-10 keV band. From the combined images of the EPIC pn and MOS cameras, we detect 866, 1114, 645, and 136 sources with sensitivity limits of -->6 × 10−16, -->8 × 10−16, -->3 × 10−15, and -->5 × 10−15 ergs cm−2 s−1 in the 0.5-2, 0.5-4.5, 2-10, and 4.5-10 keV bands, respectively, with detection likelihood ≥7 (corresponding to a confidence level of 99.91%). The catalog consists of 1245 sources in total including 32 extended-source candidates. The averaged -->log N–log S relations are in good agreement with previous results, bridging the flux range between Chandra deep surveys and brighter surveys. The -->log N–log S relations show significant spatial variation among pointings on a scale of 0.2 deg2. Analyzing the autocorrelation function, we detect significant clustering signals from the 0.5-2 keV band sample, which can be fit with a power-law form -->(θ/θc)−0.8 with a correlation length of -->θc = 5.9+ 1.0−0.9 arcsec when the integral constraint term is included. In the 2-10 keV band, however, the clustering is not significant with a 90% upper limit of -->θc ''.