The XMM-SERVS survey: New XMM-Newton point-source catalogue for the XMM-LSS field

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We present an X-ray point-source catalogue from the XMM-Large Scale Structure (XMMLSS) survey region, one of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields. We target the XMM-LSS region with 1.3 Ms of new XMM-Newton AO-15 observations, transforming the archival X-ray coverage in this region into a 5.3 deg2 contiguous field with uniform X-ray coverage totaling 2.7 Ms of flare-filtered exposure, with a 46 ks median PN exposure time. We provide an X-ray catalogue of 5242 sources detected in the soft (0.5-2 keV), hard (2-10 keV), and/or full (0.5-10 keV) bands with a 1 per cent expected spurious fraction determined from simulations. A total of 2381 new X-ray sources are detected compared to previous source catalogues in the same area. Our survey has flux limits of 1.7 × 10-15, 1.3 × 10-14, and 6.5 × 10-15 erg cm-2 s-1 over 90 per cent of its area in the soft, hard, and full bands, respectively, which is comparable to those of the XMM-COSMOS survey. We identify multiwavelength counterpart candidates for 99.9 per cent of the X-ray sources, of which 93 per cent are considered as reliable based on their matching likelihood ratios. The reliabilities of these high-likelihood-ratio counterparts are further confirmed to be ≈97 per cent reliable based on deep Chandra coverage over ≈5 per cent of the XMM-LSS region. Results of multiwavelength identifications are also included in the source catalogue, along with basic optical-to-infrared photometry and spectroscopic redshifts from publicly available surveys. We compute photometric redshifts for X-ray sources in 4.5 deg2 of our field where forced-aperture multiband photometry is available; > 70 per cent of the X-ray sources in this subfield have either spectroscopic or high-quality photometric redshifts.


  • C. T.J. Chen
  • W. N. Brandt
  • B. Luo
  • P. Ranalli
  • G. Yang
  • D. M. Alexander
  • F. E. Bauer
  • D. D. Kelson
  • M. Lacy
  • K. Nyland
  • P. Tozzi
  • F. Vito
  • M. Cirasuolo
  • R. Gilli
  • M. J. Jarvis
  • B. D. Lehmer
  • M. Paolillo
  • D. P. Schneider
  • O. Shemmer
  • I. Smail
  • Och 11 andra
  • M. Sun
  • M. Tanaka
  • M. Vaccari
  • C. Vignali
  • Y. Q. Xue
  • M. Banerji
  • K. E. Chow
  • B. Häußler
  • R. P. Norris
  • J. D. Silverman
  • J. R. Trump
Enheter & grupper
Externa organisationer
  • Pennsylvania State University
  • Nanjing University
  • Durham University
  • Pontifical Catholic University of Chile
  • Millennium Institute of Astrophysics
  • Space Science Institute
  • Carnegie Observatories
  • National Radio Astronomy Observatory
  • INAF - Osservatorio Astrofisico di Arcetri
  • European Southern Observatory
  • INAF Osservatorio Astronomico di Bologna
  • University of Oxford
  • University of the Western Cape
  • University of Arkansas - Fayetteville
  • University of Naples Federico II
  • University of North Texas
  • University of Science and Technology of China
  • National Astronomical Observatory of Japan
  • INAF Istituto di Radioastronomia, Bologna
  • St. Orsola-Malpighi University Hospital
  • University of Cambridge
  • CSIRO Oceans and Atmosphere, Canberra
  • European Southern Observatory Santiago
  • Western Sydney University
  • University of Tokyo
  • University of Connecticut

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Astronomi, astrofysik och kosmologi


Sidor (från-till)2132-2163
Antal sidor32
TidskriftMonthly Notices of the Royal Astronomical Society
Utgåva nummer2
StatusPublished - 2018 aug 1
Peer review utfördJa