2008/06/17 by Yoshihiro Ueda, M. G. Watson, Michael G. Watson +19 · 2 citations
Mathematics · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Cluster analysis #EPIC #Flux (metallurgy) #Galaxies: Formation, Evolution, Phenomena #Mathematics #Physics #Statistics #astro-ph
paper · pdf · doi:10.1086/591083
17 pages, 32 figures, accepted for publication in ApJS
arxiv created 2008/06/17 · openalex publication_date 2008/10/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the X-ray source catalog in the Subaru/ XMM-Newton deep survey. A continuous area of 1.14 deg 2 centered at R .A . = 02 h 18 m 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 deg 2 . 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/θ c ) −0.8 with a correlation length of θ c = 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 θ c < 1.5 '' .