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The WiggleZ Dark Energy Survey: final data release and the metallicity of UV-luminous galaxies

Drinkwater, Michael John; Byrne, Zachary J; Blake, Chris; Glazebrook, Karl; Brough, Sarah; Colless, Matthew; Couch, Warrick; Croton, Darren; Croom, Scott M; Davis, Tamara; Forster, Karl; Gilbank, David; Hinton, Samuel R; Jelliffe, Ben; Pracy, Michael; Sharp, Rob; Smillie, Jonathan

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The WiggleZ Dark Energy Survey measured the redshifts of over 200 000 ultraviolet (UV)- selected (NUV < 22.8 mag) galaxies on the Anglo-Australian Telescope. The survey detected the baryon acoustic oscillation signal in the large-scale distribution of galaxies over the redshift range 0.2 < z < 1.0, confirming the acceleration of the expansion of the Universe and measuring the rate of structure growth within it. Here, we present the final data release of the survey: a catalogue of 225 415...[Show more]

dc.contributor.authorDrinkwater, Michael John
dc.contributor.authorByrne, Zachary J
dc.contributor.authorBlake, Chris
dc.contributor.authorGlazebrook, Karl
dc.contributor.authorBrough, Sarah
dc.contributor.authorColless, Matthew
dc.contributor.authorCouch, Warrick
dc.contributor.authorCroton, Darren
dc.contributor.authorCroom, Scott M
dc.contributor.authorDavis, Tamara
dc.contributor.authorForster, Karl
dc.contributor.authorGilbank, David
dc.contributor.authorHinton, Samuel R
dc.contributor.authorJelliffe, Ben
dc.contributor.authorPracy, Michael
dc.contributor.authorSharp, Rob
dc.contributor.authorSmillie, Jonathan
dc.date.accessioned2021-12-16T04:44:13Z
dc.date.available2021-12-16T04:44:13Z
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/256622
dc.description.abstractThe WiggleZ Dark Energy Survey measured the redshifts of over 200 000 ultraviolet (UV)- selected (NUV < 22.8 mag) galaxies on the Anglo-Australian Telescope. The survey detected the baryon acoustic oscillation signal in the large-scale distribution of galaxies over the redshift range 0.2 < z < 1.0, confirming the acceleration of the expansion of the Universe and measuring the rate of structure growth within it. Here, we present the final data release of the survey: a catalogue of 225 415 galaxies and individual files of the galaxy spectra. We analyse the emission-line properties of these UV-luminous Lyman-break galaxies by stacking the spectra in bins of luminosity, redshift, and stellar mass. The most luminous (-25 mag < MFUV < -22 mag) galaxies have very broad Hβ emission from active nuclei, as well as a broad second component to the [OIII] (495.9 nm, 500.7 nm) doublet lines that is blueshifted by 100 km s-1, indicating the presence of gas outflows in these galaxies. The composite spectra allow us to detect and measure the temperature-sensitive [O III] (436.3 nm) line and obtain metallicities using the direct method. The metallicities of intermediate stellar mass (8.8 < log (M*/M⊙) < 10)WiggleZ galaxies are consistent with normal emission-line galaxies at the samemasses. In contrast, the metallicities of high stellarmass (10 < log (M*/M⊙) < 12) WiggleZ galaxies are significantly lower than for normal emission-line galaxies at the same masses. This is not an effect of evolution as the metallicities do not vary with redshift; it is most likely a property specific to the extremely UV-luminous WiggleZ galaxies.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherBlackwell Publishing Ltd
dc.rights© 2017 The Authors
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.subjectsurveys – galaxies
dc.subjectabundances – galaxies
dc.subjectphotometry – galaxies
dc.subjectstarburst – cosmology
dc.subjectobservations – ultraviolet
dc.subjectgalaxies.
dc.titleThe WiggleZ Dark Energy Survey: final data release and the metallicity of UV-luminous galaxies
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume474
dc.date.issued2018
local.identifier.absfor020103 - Cosmology and Extragalactic Astronomy
local.identifier.absfor020104 - Galactic Astronomy
local.identifier.ariespublicationa383154xPUB9258
local.publisher.urlhttps://academic.oup.com/
local.type.statusPublished Version
local.contributor.affiliationDrinkwater, Michael John, University of Queensland
local.contributor.affiliationByrne, Zachary J, University of Queensland
local.contributor.affiliationBlake, Chris, Swinburne University of Technology
local.contributor.affiliationGlazebrook, Karl, Swinburne University of Technology
local.contributor.affiliationBrough, Sarah, The University of New South Wales
local.contributor.affiliationColless, Matthew, College of Science, ANU
local.contributor.affiliationCouch, Warrick, Australian Astronomical Observatory
local.contributor.affiliationCroton, Darren, Swinburne University of Technology
local.contributor.affiliationCroom, Scott M, University of Sydney
local.contributor.affiliationDavis, Tamara, College of Science, ANU
local.contributor.affiliationForster, Karl, California Institute of Technology
local.contributor.affiliationGilbank, David, South African Astronomical Observatory
local.contributor.affiliationHinton, Samuel R, University of Queensland
local.contributor.affiliationJelliffe, Ben, University of Sydney
local.contributor.affiliationPracy, Michael, College of Science, ANU
local.contributor.affiliationSharp, Rob, College of Science, ANU
local.contributor.affiliationSmillie, Jonathan, Administrative Portfolio, ANU
dc.relationhttp://purl.org/au-research/grants/arc/DP0772084
dc.relationhttp://purl.org/au-research/grants/arc/DP1093738
dc.relationhttp://purl.org/au-research/grants/arc/LX0881951
dc.relationhttp://purl.org/au-research/grants/arc/LE0668442
dc.relationhttp://purl.org/au-research/grants/arc/FT140101166
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage4151
local.bibliographicCitation.lastpage4168
local.identifier.doi10.1093/mnras/stx2963
dc.date.updated2020-11-23T11:59:26Z
local.identifier.scopusID2-s2.0-85040241167
dcterms.accessRightsopen access
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/24618..."The Published Version can be archived in an Institutional Repository" from SHERPA/RoMEO site (as at 16/12/2021). This article has been accepted for publication in [Monthly Notices of the Royal Astronomical Society] ©: 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
CollectionsANU Research Publications

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