The SCUBA-2 Cluster Snapshot Survey – I. Catalogue of lensed galaxies and submillimetre-bright central galaxies
AuthorCheale, Ryan A
Geach, James E
Edge, Alastair C
Blain, Andrew W
Chapman, Scott C
Hogan, Mike T
Rawle, Timothy D
Webb, Tracy M A
AffiliationUniv Arizona, Steward Observ
galaxies: clusters: general
MetadataShow full item record
PublisherOXFORD UNIV PRESS
CitationRyan A Cheale, James E Geach, Alastair C Edge, Andrew W Blain, Scott C Chapman, Eiichi Egami, Mike T Hogan, Timothy D Rawle, Tracy M A Webb, The SCUBA-2 Cluster Snapshot Survey – I. Catalogue of lensed galaxies and submillimetre-bright central galaxies, Monthly Notices of the Royal Astronomical Society, Volume 484, Issue 2, April 2019, Pages 2757–2778, https://doi.org/10.1093/mnras/stz011
Rights© 2019 The Author(s)
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThe SCUBA-2 Cluster Snapshot Survey (S2CSS) observed 202 rich clusters of galaxies at 850 mu m in relatively poor submillimetre observing conditions (tau(225) (GHz) > 0.1) with the aim of identifying rare examples of bright (tens of mJy) gravitationally lensed submillimetre galaxies. The S2CSS covered over 0.33 deg(2) to an average depth of sigma(850) approximate to 12 mJy beam(-1). Here we present a sample of 97 bright 850-mu m point sources selected from the S2CSS that are potentially gravitationally lensed, and eight sources for which the strong submillimetre emission is co-located with the central brightest cluster galaxy (BCG). We construct far-infrared spectral energy distributions for those sources with Herschel SPIRE coverage and use these distributions to estimate the redshifts and luminosities of the sources. The bright submillimetre flux density of our sources makes them excellent targets for detailed follow-up work that will allow the detection of spectral features in the submillimetre/millimetre that would otherwise be too faint to detect. Through a stacking analysis, we also investigate the average submillimetre/radio properties of BCGs, determining the average 850-mu m flux of BCGs as a function of radio luminosity.
VersionFinal published version
SponsorsRoyal Society; Royal Society University Research Fellowship; STFC [ST/P000J41/1]; ERC Advanced Grant [ST/P000J41/1, 321334]; Royal Society/Wolfson Merit Award; Chinese Academy of Sciences [XDB09000000]; Science and Technology Facilities Council of the United Kingdom
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