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dc.contributor.authorCooke, E. A.
dc.contributor.authorSmail, Ian
dc.contributor.authorSwinbank, A. M.
dc.contributor.authorStach, S. M.
dc.contributor.authorAn, FangXia
dc.contributor.authorGullberg, B.
dc.contributor.authorAlmaini, O.
dc.contributor.authorSimpson, C. J.
dc.contributor.authorWardlow, J. L.
dc.contributor.authorBlain, A. W.
dc.contributor.authorChapman, S. C.
dc.contributor.authorChen, Chian-Chou
dc.contributor.authorConselice, C. J.
dc.contributor.authorCoppin, K. E. K.
dc.contributor.authorFarrah, D.
dc.contributor.authorMaltby, D. T.
dc.contributor.authorMichalowski, M. J.
dc.contributor.authorScott, D.
dc.contributor.authorThomson, A. P.
dc.contributor.authorWerf, P. van der
dc.date.accessioned2019-02-20T15:17:23Z
dc.date.available2019-02-20T15:17:23Z
dc.date.issued2018-07-10
dc.identifier.citationCooke , E A , Smail , I , Swinbank , A M , Stach , S M , An , F , Gullberg , B , Almaini , O , Simpson , C J , Wardlow , J L , Blain , A W , Chapman , S C , Chen , C-C , Conselice , C J , Coppin , K E K , Farrah , D , Maltby , D T , Michalowski , M J , Scott , D , Thomson , A P & Werf , P V D 2018 , ' An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Identifying candidate z~4.5 [CII] emitters ' , The Astrophysical Journal , vol. 861 , no. 2 , 100 . https://doi.org/10.3847/1538-4357/aac6ba
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 14855395
dc.identifier.otherPURE UUID: 0aa5777c-e602-41fb-af87-bdc6ef704ef0
dc.identifier.otherArXiv: http://arxiv.org/abs/1805.05363v1
dc.identifier.otherScopus: 85050674124
dc.identifier.otherORCID: /0000-0002-0729-2988/work/53692738
dc.identifier.urihttp://hdl.handle.net/2299/21122
dc.description© 2018 The American Astronomical Society. All rights reserved. 16 pages, 10 figures, accepted for publication in ApJ
dc.description.abstractWe report the results of a search for serendipitous [C ii] 157.74 μm emitters at z ≃ 4.4-4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ∼50 arcmin 2 of the sky toward 695 luminous (S 870 ≈ 1 mJy) submillimeter galaxies (SMGs), selected from the SCUBA-2 Cosmology Legacy Survey 0.96 deg 2 Ultra Deep Survey (UDS) field. We detect 10 candidate line emitters, with an expected false detection rate of 10%. All of these line emitters correspond to 870 μm continuum-detected sources in AS2UDS. The emission lines in two emitters appear to be high-J CO, but the remainder have multi-wavelength properties consistent with [C ii] from z ≃ 4.5 galaxies. Using our sample, we place a lower limit of on the space density of luminous (L IR ≃ 10 13 ) SMGs at z = 4.40-4.66, suggesting % of SMGs with mJy lie at 4 < z < 5. From stacking the high-resolution (∼0.″15 full-width half maximum) ALMA 870 μm imaging, we show that the [C ii] line emission is more extended than the continuum dust emission, with an average effective radius for the [C ii] of kpc, compared to r e = 1.0 + 0.1 kpc for the continuum (rest-frame 160 μm). By fitting the far-infrared photometry for these galaxies from 100 to 870 μm, we show that SMGs at z ∼ 4.5 have a median dust temperature of T d = 55 -4 K. This is systematically warmer than 870 μm selected SMGs at z ≃ 2, which typically have temperatures around 35 K. These z ≃ 4.5 SMGs display a steeper trend in the luminosity-temperature plane than z ≤ 2 SMGs. We discuss the implications of this result in terms of the selection biases of high-redshift starbursts in far-infrared/submillimeter surveys.en
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.subjectgalaxies: high-redshift
dc.subjectsubmillimeter: galaxies
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleAn ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Identifying candidate z~4.5 [CII] emittersen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.date.embargoedUntil2019-07-10
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85050674124&partnerID=8YFLogxK
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.3847/1538-4357/aac6ba
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeembargoedAccess


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