The XMM-SERVS survey: XMM-Newton point-source catalogs for the W-CDF-S
  and ELAIS-S1 fields
  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
deg$^2$) and ELAIS-S1 (3.2 deg$^2$), 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 Ms and 1.0 Ms of XMM-Newton
observations, respectively; 1.8 Ms and 0.9 Ms exposures remain after flare
filtering. The survey in W-CDF-S has a flux limit of 1.0 $\times$ 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
$\times$ 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 $\approx$ 89% of the
sources in W-CDF-S and $\approx$ 87% of the sources in ELAIS-S1. 3186 sources
in W-CDF-S and 1985 sources in ELAIS-S1 are classified as AGNs. We also provide
photometric redshifts for X-ray sources; $\approx$ 84% of the 3319/2001 sources
in W-CDF-S/ELAIS-S1 with optical-to-NIR 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 $\approx$ 12,000 point-like X-ray
sources detected in the whole $\approx$ 13 deg$^2$ XMM-SERVS survey will
benefit future large-sample AGN studies.
