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dc.contributor.authorStach, S. M.
dc.contributor.authorSmail, I.
dc.contributor.authorSwinbank, A. M.
dc.contributor.authorGeach, J. E.
dc.contributor.authorAn, F. X.
dc.contributor.authorAlmaini, O.
dc.contributor.authorArumugam, V.
dc.contributor.authorBlain, A. W.
dc.contributor.authorChapman, S. C.
dc.contributor.authorConselice, C. J.
dc.contributor.authorCooke, E. A.
dc.contributor.authorCoppin, K. E. K.
dc.contributor.authorDunlop, J. S.
dc.contributor.authorFarrah, D.
dc.contributor.authorGullberg, B.
dc.contributor.authorHartley, W.
dc.contributor.authorIvison, R. J.
dc.contributor.authorMaltby, D. T.
dc.contributor.authorMichałowski, M. J.
dc.contributor.authorScott, D.
dc.contributor.authorWardlow, J. L.
dc.contributor.authorWerf, P. van der
dc.date.accessioned2019-01-08T17:00:02Z
dc.date.available2019-01-08T17:00:02Z
dc.date.issued2018-06-25
dc.identifier.citationStach , S M , Smail , I , Swinbank , A M , Geach , J E , An , F X , Almaini , O , Arumugam , V , Blain , A W , Chapman , S C , Conselice , C J , Cooke , E A , Coppin , K E K , Dunlop , J S , Farrah , D , Gullberg , B , Hartley , W , Ivison , R J , Maltby , D T , Michałowski , M J , Scott , D , Wardlow , J L & Werf , P V D 2018 , ' An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : number counts of submillimeter galaxies ' , The Astrophysical Journal , vol. 860 , no. 2 , 161 . https://doi.org/10.3847/1538-4357/aac5e5
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 16085980
dc.identifier.otherPURE UUID: 4eee9142-c437-4c1c-922f-ea539fa42989
dc.identifier.otherArXiv: http://arxiv.org/abs/1805.05362v2
dc.identifier.otherScopus: 85049195000
dc.identifier.otherORCID: /0000-0002-0729-2988/work/53692741
dc.identifier.urihttp://hdl.handle.net/2299/20931
dc.description11 pages, 4 figures, fixed typo (sorry Rob)
dc.description.abstractWe report the first results of AS2UDS, an 870 μm continuum survey with the Atacama Large Millimeter/Submillimeter Array (ALMA) of a total area of ∼50 arcmin 2 comprising a complete sample of 716 submillimeter sources drawn from the SCUBA-2 Cosmology Legacy Survey (S2CLS) map of the UKIDSS/UDS field. The S2CLS parent sample covers a 0.96 degree 2 field at σ 850 = 0.90 ± 0.05 mJy beam -1. Our deep, high-resolution ALMA observations with σ 870 ∼ 0.25 mJy and a 0.″15-0.″30 FWHM synthesized beam, provide precise locations for 695 submillimeter galaxies (SMGs) responsible for the submillimeter emission corresponding to 606 sources in the low-resolution, single-dish map. We measure the number counts of SMGs brighter than S 870 ≥ 4 mJy, free from the effects of blending and show that the normalization of the counts falls by 28% ± 2% in comparison with the SCUBA-2 published counts, but that the shape remains unchanged. We determine that % of the brighter single-dish sources with S 850 ≥ 9 mJy consist of a blend of two or more ALMA-detectable SMGs brighter than S 870 ∼ 1 mJy (corresponding to a galaxy with a total-infrared luminosity of L IR 10 12 L o), in comparison with 28% ± 2% for the single-dish sources at S 850 ≥ 5 mJy. Using the 46 single-dish submillimeter sources that contain two or more ALMA-detected SMGs with photometric redshifts, we show that there is a significant statistical excess of pairs of SMGs with similar redshifts (<1% probability of occurring by chance), suggesting that at least 30% of these blends arise from physically associated pairs of SMGs.en
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.subjectgalaxies: high-redshift
dc.subjectgalaxies: starburst
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleAn ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : number counts of submillimeter galaxiesen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85049195000&partnerID=8YFLogxK
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.3847/1538-4357/aac5e5
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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