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dc.contributor.authorGeach, James E.
dc.contributor.authorSmail, Ian
dc.contributor.authorBest, P.N.
dc.contributor.authorKurk, J.
dc.contributor.authorCasali, M.
dc.contributor.authorIvison, R. J.
dc.contributor.authorCoppin, Kristen
dc.date.accessioned2013-08-06T09:03:18Z
dc.date.available2013-08-06T09:03:18Z
dc.date.issued2008-08-21
dc.identifier.citationGeach , J E , Smail , I , Best , P N , Kurk , J , Casali , M , Ivison , R J & Coppin , K 2008 , ' HiZELS: a high-redshift survey of H alpha emitters - I : The cosmic star formation rate and clustering at z=2.23 ' , Monthly Notices of the Royal Astronomical Society , vol. 388 , no. 4 , pp. 1473-1486 . https://doi.org/10.1111/j.1365-2966.2008.13481.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 2139523
dc.identifier.otherPURE UUID: 13d48fcd-63b6-4224-a04e-37d26d4c51ba
dc.identifier.otherWOS: 000258222800003
dc.identifier.otherScopus: 49249083307
dc.identifier.otherORCID: /0000-0002-0729-2988/work/30423112
dc.identifier.urihttp://hdl.handle.net/2299/11312
dc.description.abstractWe present results from a near-infrared narrow-band survey of emission-line galaxies at z = 2.23, using the Wide Field Camera on the United Kingdom Infrared Telescope. The H(2)S1 narrow-band filter (lambda(c) = 2.121 mu m) we employ selects the H alpha emission-line redshifted to z = 2.23, and is thus suitable for selecting 'typical' star-forming galaxies and active galactic nuclei at this epoch. The pilot study was undertaken in the well-studied Cosmological Evolution Survey field (COSMOS) and is already the largest near-infrared narrow-band survey at this depth, with a line flux limit of F(H alpha) similar to 10(-16) erg s(-1) cm(-2) over 0.60 deg(2), probing similar to 220 x 10(3) Mpc(3) (comoving) down to a limiting star formation rate of similar to 30 M(circle dot) yr(-1) (3 sigma). In this paper, we present the results from our pilot survey and evaluate the H alpha luminosity function and estimate the clustering properties of H alpha emitters at z = 2.23 from 55 detected galaxies. The integrated luminosity function is used to estimate the volume-averaged star formation rate at z = 2.23: rho(SFR) = 0.17(-0.09)(+0.16) M(circle dot) yr(-1) Mpc(-3) for L(H alpha) > 10(42) erg s(-1). For the first time, we use the H alpha star formation tracer to reliably constrain rho(SFR) out to z = 2.23 demonstrating the rapid increase in rho(SFR) out to this redshift as well as confirming the flattening in rho(SFR) between z similar to 1 and 2. In addition to the luminosity distribution, we analyse the clustering properties of these galaxies. Using the two-point angular correlation function, omega(theta), we estimate a real-space correlation length of r(0) = 4.2(-0.2)(+0.4) h(-1) Mpc. In comparison to models of clustering which take into account bias evolution, we estimate that these galaxies are hosted by dark matter haloes of mass M(halo) similar to 10(12) M(circle dot) consistent with the progenitors of the Milky Way.en
dc.format.extent14
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectgalaxies : evolution
dc.subjectgalaxies : high-redshift
dc.subjectgalaxies : luminosity function, mass function
dc.subjectcosmology : observations
dc.subjectSUBMILLIMETER-SELECTED GALAXIES
dc.subjectLYMAN BREAK GALAXIES
dc.subjectFORMING GALAXIES
dc.subjectLUMINOSITY FUNCTION
dc.subjectPHOTOMETRIC REDSHIFTS
dc.subjectFORMATION HISTORY
dc.subjectNUMBER COUNTS
dc.subjectSKY SURVEY
dc.subjectEVOLUTION
dc.subjectFIELD
dc.titleHiZELS: a high-redshift survey of H alpha emitters - I : The cosmic star formation rate and clustering at z=2.23en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeSubmitted Version
dcterms.dateAccepted2008-08-21
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2008.13481.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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