The XMM-SERVS Survey: XMM-Newton Point-source Catalogs for the W-CDF-S and ELAIS-S1 Fields
Yang, Guang; Trump, Jonathan R.; Brandt, W. N.; Schneider, Donald P.; Aird, James; Comastri, Andrea; Zou, Fan; Luo, Bin; Ni, Qingling; Vito, Fabio; Xue, Yongquan; Vignali, Cristian; Nyland, Kristina; Lacy, Mark; Tozzi, Paolo; Schwope, Axel; Vaccari, Mattia; Paolillo, Maurizio; Timlin, John D., III; Gilli, Roberto; Mallick, Labani; Salvato, Mara; Alexander, David M.; Del Moro, Agnese; Shemmer, Ohad; Chen, Chien-Ting; Lehmer, Bret D.; Traulsen, Iris; Bauer, Franz Erik; Mullaney, James; Banerji, Manda; Chow, Kate; Sun, Mouyuan
United States, China, United Kingdom, Chile, India, Germany, Italy, South Africa, Australia
Abstract
We present the X-ray point-source catalogs in two of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields, W-CDF-S (4.6 deg2) and ELAIS-S1 (3.2 deg2), aiming to fill the gap between deep pencil-beam X-ray surveys and shallow X-ray surveys over large areas. The W-CDF-S and ELAIS-S1 regions were targeted with 2.3 and 1.0 Ms of XMM-Newton observations, respectively; 1.8 and 0.9 Ms exposures remain after flare filtering. The survey in W-CDF-S has a flux limit of 1.0 × 10-14 erg cm-2 s-1 over 90% of its area in the 0.5-10 keV band; 4053 sources are detected in total. The survey in ELAIS-S1 has a flux limit of 1.3 × 10-14 erg cm-2 s-1 over 90% of its area in the 0.5-10 keV band; 2630 sources are detected in total. Reliable optical-to-IR multiwavelength counterpart candidates are identified for ≈89% of the sources in W-CDF-S and ≈87% of the sources in ELAIS-S1. A total of 3129 sources in W-CDF-S and 1957 sources in ELAIS-S1 are classified as active galactic nuclei (AGNs). We also provide photometric redshifts for X-ray sources; ≈84% of the 3319/2001 sources in W-CDF-S/ELAIS-S1 with optical-to-near-IR forced photometry available have either spectroscopic redshifts or high-quality photometric redshifts. The completion of the XMM-Newton observations in the W-CDF-S and ELAIS-S1 fields marks the end of the XMM-SERVS survey data gathering. The ≈12,000 pointlike X-ray sources detected in the whole ≈13 deg2 XMM-SERVS survey will benefit future large-sample AGN studies.