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dc.contributor.authorHuynh, M. T.
dc.contributor.authorKimball, A. E.
dc.contributor.authorNorris, R. P.
dc.contributor.authorSmail, Ian
dc.contributor.authorChow, K. E.
dc.contributor.authorCoppin, K. E. K.
dc.contributor.authorEmonts, B. H. C.
dc.contributor.authorIvison, R. J.
dc.contributor.authorSmolcic, V.
dc.contributor.authorSwinbank, A. M.
dc.date.accessioned2017-07-21T14:50:51Z
dc.date.available2017-07-21T14:50:51Z
dc.date.issued2014-09-01
dc.identifier.citationHuynh , M T , Kimball , A E , Norris , R P , Smail , I , Chow , K E , Coppin , K E K , Emonts , B H C , Ivison , R J , Smolcic , V & Swinbank , A M 2014 , ' Detection of molecular gas in an ALMA [CII]-identified Submillimetre Galaxy at z = 4.44 ' , Monthly Notices of the Royal Astronomical Society , vol. 443 , no. 1 , pp. L54-L58 . https://doi.org/10.1093/mnrasl/slu077
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 10180473
dc.identifier.otherPURE UUID: 1b9fb5c9-f6da-4f89-8dde-c3f32e0c185d
dc.identifier.otherArXiv: http://arxiv.org/abs/1407.0463v2
dc.identifier.otherScopus: 84905157991
dc.identifier.otherORCID: /0000-0002-0729-2988/work/41650797
dc.identifier.urihttp://hdl.handle.net/2299/19034
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
dc.description.abstractWe present the detection of 12CO(2–1) in the z = 4.44 submillimetre galaxy ALESS65.1 using the Australia Telescope Compact Array. A previous Atacama Large Millimeter/submillimeter Array study of submillimetre galaxies (SMGs) in the Extended Chandra Deep Field South determined the redshift of this optically and near-infrared undetected source through the measurement of [C II] 157.74 μm emission. Using the luminosity of the 12CO(2–1) emission, we estimate the gas mass to be Mgas ∼ 1.7 × 1010 M⊙. The gas depletion time-scale of ALESS65.1 is ∼ 25 Myr, similar to other high-redshift SMGs and consistent with z > 4 SMGs being the progenitors of massive ‘red-and-dead’ galaxies at z > 2. The ratio of the [C II], 12CO and far-infrared luminosities implies a strong far-ultraviolet field of G0 ∼ 103.25, which is at the high end of the far-ultraviolet fields seen in local starbursts, but weaker than the far-ultraviolet fields of most nearby ultraluminous infrared galaxies (ULIRGs). The high ratio of L[CII]/LFIR=1.0×10−3L[CII]/LFIR=1.0×10−3 observed in ALESS65.1, combined with L[CII]/LCO∼2300L[CII]/LCO∼2300, is consistent with ALESS65.1 having more extended regions of intense star formation than local ULIRGs.en
dc.format.extent5
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectastro-ph.GA
dc.titleDetection of molecular gas in an ALMA [CII]-identified Submillimetre Galaxy at z = 4.44en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnrasl/slu077
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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