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dc.contributor.authorKoprowski, M. P.
dc.contributor.authorCoppin, K. E. K.
dc.contributor.authorGeach, J. E.
dc.contributor.authorMcLure, R. J.
dc.contributor.authorAlmaini, O.
dc.contributor.authorBlain, A. W.
dc.contributor.authorBremer, M.
dc.contributor.authorBourne, N.
dc.contributor.authorChapman, S. C.
dc.contributor.authorConselice, C. J.
dc.contributor.authorDunlop, J. S.
dc.contributor.authorFarrah, D.
dc.contributor.authorHartley, W.
dc.contributor.authorKarim, A.
dc.contributor.authorKnudsen, K. K.
dc.contributor.authorMichałowski, M. J.
dc.contributor.authorScott, D.
dc.contributor.authorSimpson, C.
dc.contributor.authorSmith, D. J. B.
dc.contributor.authorWerf, P. P. van der
dc.identifier.citationKoprowski , M P , Coppin , K E K , Geach , J E , McLure , R J , Almaini , O , Blain , A W , Bremer , M , Bourne , N , Chapman , S C , Conselice , C J , Dunlop , J S , Farrah , D , Hartley , W , Karim , A , Knudsen , K K , Michałowski , M J , Scott , D , Simpson , C , Smith , D J B & Werf , P P V D 2018 , ' A direct calibration of the IRX-β relation in Lyman-break Galaxies at z=3-5 ' Monthly Notices of the Royal Astronomical Society , vol. 479 , no. 4 , pp. 4355–4366 .
dc.identifier.otherPURE: 14855217
dc.identifier.otherPURE UUID: 8f4a4568-237e-4fbf-b456-5de4e6a3c62e
dc.identifier.otherScopus: 85051508821
dc.identifier.otherORCID: /0000-0002-0729-2988/work/53692735
dc.descriptionThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. 12 pages, 10 figures
dc.description.abstractWe use a sample of 4178 Lyman break galaxies (LBGs) at z = 3, 4 and 5 in the UKIRT Infrared Deep Sky Survey (UKIDSS) Ultra Deep Survey (UDS) field to investigate the relationship between the observed slope of the stellar continuum emission in the ultraviolet, {\beta}, and the thermal dust emission, as quantified via the so-called 'infrared excess' (IRX = LIR/LUV). Through a stacking analysis we directly measure the 850-{\mu}m flux density of LBGs in our deep (0.9mJy) James Clerk Maxwell Telescope (JCMT) SCUBA-2 850-{\mu}m map, as well as deep public Herschel/SPIRE 250-, 350- and 500-{\mu}m imaging. We establish functional forms for the IRX-{\beta} relation to z ~ 5, confirming that there is no significant redshift evolution of the relation and that the resulting average IRX-{\beta} curve is consistent with a Calzetti-like attenuation law. We compare our results with recent work in the literature, finding that discrepancies in the slope of the IRX-{\beta} relation are driven by biases in the methodology used to determine the ultraviolet slopes. Consistent results are found when IRX-{\beta} is evaluated by stacking in bins of stellar mass, M, and we argue that the near-linear IRX-M relationship is a better proxy for correcting observed UV luminosities to total star formation rates, provided an accurate handle on M can be had, and also gives clues as to the physical driver of the role of dust-obscured star formation in high-redshift galaxies.en
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.titleA direct calibration of the IRX-β relation in Lyman-break Galaxies at z=3-5en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionCentre for Research in Public Health and Community Care
dc.contributor.institutionOlder People's Health and Complex Conditions
dc.contributor.institutionSchool of Health and Social Work
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.relation.schoolSchool of Health and Social Work
dc.description.versiontypeFinal Accepted Version
rioxxterms.typeJournal Article/Review

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