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dc.contributor.authorSobral, D.
dc.contributor.authorBest, P.N.
dc.contributor.authorGeach, J.E.
dc.contributor.authorSmail, I.
dc.contributor.authorKurk, J.
dc.contributor.authorCirasuolo, M.
dc.contributor.authorCasali, M.
dc.contributor.authorIvison, R.J.
dc.contributor.authorCoppin, Kristen
dc.contributor.authorDalton, G.B.
dc.date.accessioned2014-01-27T11:00:30Z
dc.date.available2014-01-27T11:00:30Z
dc.date.issued2009-09-01
dc.identifier.citationSobral , D , Best , P N , Geach , J E , Smail , I , Kurk , J , Cirasuolo , M , Casali , M , Ivison , R J , Coppin , K & Dalton , G B 2009 , ' Bright Lyα emitters at z ~ 9 : Constraints on the LF from HizELS ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 398 , no. 1 , pp. L68-L72 . https://doi.org/10.1111/j.1745-3933.2009.00712.x
dc.identifier.issn1745-3933
dc.identifier.otherPURE: 2713180
dc.identifier.otherPURE UUID: 9972fb80-f258-465c-8a23-a370966b7c75
dc.identifier.otherScopus: 70549101627
dc.identifier.otherORCID: /0000-0002-0729-2988/work/30423103
dc.identifier.urihttp://hdl.handle.net/2299/12676
dc.descriptionCopyright Royal Astronomical Society
dc.description.abstractNew results are presented, as part of the Hi-z Emission Line Survey (HizELS), from the largest area survey to date (1.4 deg ) for Lyα emitters (LAEs) at z ~ 9. The survey, which is primarily targeting Hα emitters at z <3, uses the Wide Field CAMera on the United Kingdom Infrared Telescope and a custom narrow-band filter in the J band and reaches a Lyα luminosity limit of ~10 ergs over a co-moving volume of 1.12 × 10 Mpc at z = 8.96 ± 0.06. Only two candidates were found out of 1517 line emitters and those were rejected as LAEs after follow-up observations. The limit on the space density of bright LAEs is improved by three orders of magnitude, consistent with suppression of the bright end of the Lyα luminosity function beyond z ~ 6. Combined with upper limits from smaller but deeper surveys, this rules out some of the most extreme models for high-redshift LAEs. The potential contamination of future narrow-band Lyα surveys at z > 7 by Galactic brown dwarf stars is also examined, leading to the conclusion that such contamination may well be significant for searches at 7.7 <z <8.0, 9.1 <z <9.5 and 11.7 <z <12.2.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.rightsOpen
dc.titleBright Lyα emitters at z ~ 9 : Constraints on the LF from HizELSen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=70549101627&partnerID=8YFLogxK
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeSubmitted Version
dcterms.dateAccepted2009-09-01
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1745-3933.2009.00712.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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