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

Chen, C.-T.J.; Brandt, W.N.; Luo, B.; Ranalli, P.; Yang, G.; Alexander, D.M.; Bauer, F.E.; Kelson, D.D.; Lacy, M.; Nyland, K.; Tozzi, P.; Vito, F.; Cirasuolo, M.; Gilli, R.; Jarvis, M.J.; Lehmer, B.D.; Paolillo, M.; Schneider, D.P.; Shemmer, O.; Smail, I.; Sun, M.; Tanaka, M.; Vaccari, M.; Vignali, C.; Xue, Y.Q.; Banerji, M.; Chow, K.E.; Häu\ssler, B.; Norris, R.P.; Silverman, J.D.; Trump, J.R.

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


C.-T.J. Chen

W.N. Brandt

B. Luo

P. Ranalli

G. Yang

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

M. Sun

M. Tanaka

M. Vaccari

C. Vignali

Y.Q. Xue

M. Banerji

K.E. Chow

B. Häu\ssler

R.P. Norris

J.D. Silverman

J.R. Trump


We present an X-ray point-source catalogue from the XMM-Large Scale Structure (XMM-LSS) 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.

Journal Article Type Article
Acceptance Date Apr 20, 2018
Online Publication Date Apr 25, 2018
Publication Date Apr 25, 2018
Deposit Date Jun 28, 2018
Publicly Available Date Jun 29, 2018
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 478
Pages 2132-2163
Public URL
Publisher URL


Published Journal Article (7 Mb)

Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2018 The Authors.
Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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