Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/19461
DC FieldValueLanguage
dc.contributor.authorHarrison, Ian-
dc.contributor.authorBrown, Michael L.-
dc.contributor.authorTunbridge, Ben-
dc.contributor.authorThomas, Daniel B.-
dc.contributor.authorHillier, Tom-
dc.contributor.authorThomson, A. P.-
dc.contributor.authorWhittaker, Lee-
dc.contributor.authorAbdalla, Filipe B.-
dc.contributor.authorBattye, Richard A.-
dc.contributor.authorBonaldi, Anna-
dc.contributor.authorCamera, Stefano-
dc.contributor.authorCasey, Caitlin M.-
dc.contributor.authorDemetroullas, Constantinos-
dc.contributor.authorHales, Christopher A.-
dc.contributor.authorJackson, Neal J.-
dc.contributor.authorKay, Scott T.-
dc.contributor.authorManning, Sinclaire M.-
dc.contributor.authorPeters, Aaron-
dc.contributor.authorRiseley, Christopher J.-
dc.contributor.authorWatson, Robert A.-
dc.date.accessioned2020-11-24T14:31:22Z-
dc.date.available2020-11-24T14:31:22Z-
dc.date.issued2020-06-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2020, vol. 495, no. 2, pp. 1737-1759en_US
dc.identifier.issn13652966-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/19461-
dc.description.abstractWe describe the first results on weak gravitational lensing from the SuperCLASS survey: the first survey specifically designed to measure the weak lensing effect in radio-wavelength data, both alone and in cross-correlation with optical data. We analyse 1.53 deg(2) of optical data from the Subaru telescope and 0.26 deg(2) of radio data from the e-MERLIN and VLA telescopes (the DR1 data set). Using standard methodologies on the optical data only we make a significant (10 sigma) detection of the weak lensing signal (a shear power spectrum) due to the massive supercluster of galaxies in the targeted region. For the radio data we develop a new method to measure the shapes of galaxies from the interferometric data, and we construct a simulation pipeline to validate this method. We then apply this analysis to our radio observations, treating the e-MERLIN and VLA data independently. We achieve source densities of 0.5 arcmin(-2) in the VLA data and 0.06 arcmin(-2) in the e-MERLIN data, numbers which prove too small to allow a detection of a weak lensing signal in either the radio data alone or in cross-correlation with the optical data. Finally, we show preliminary results from a visibility-plane combination of the data from e-MERLIN and VLA which will be used for the forthcoming full SuperCLASS data release. This approach to data combination is expected to enhance both the number density of weak lensing sources available, and the fidelity with which their shapes can be measured.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_US
dc.rights© The Author(s)en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectGravitational lensing: weaken_US
dc.subjectDark matteren_US
dc.subjectLarge-scale structure of Universe – cosmology: observationsen_US
dc.subjectRadio continuum: galaxiesen_US
dc.titleSuperCLASS - III. Weak lensing from radio and optical observations in Data Release 1en_US
dc.typeArticleen_US
dc.collaborationThe University of Manchesteren_US
dc.collaborationUniversity of Oxforden_US
dc.collaborationUniversity College Londonen_US
dc.collaborationJodrell Bank Centre for Astrophysicsen_US
dc.collaborationUniversity of Turinen_US
dc.collaborationIstituto Nazionale di Fisica Nucleareen_US
dc.collaborationUniversity of Texas at Austinen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationNational Radio Astronomy Observatoryen_US
dc.collaborationNewcastle Universityen_US
dc.collaborationUniversity of Bolognaen_US
dc.collaborationCommonwealth Scientific & Industrial Research Organisationen_US
dc.subject.categoryPhysical Sciencesen_US
dc.journalsSubscriptionen_US
dc.countryUnited Kingdomen_US
dc.countryItalyen_US
dc.countryUSAen_US
dc.countryCyprusen_US
dc.countryAustraliaen_US
dc.subject.fieldNatural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1093/mnras/staa696en_US
dc.relation.issue2en_US
dc.relation.volume495en_US
cut.common.academicyear2019-2020en_US
dc.identifier.spage1737en_US
dc.identifier.epage1759en_US
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn1365-2966-
crisitem.journal.publisherOxford University Press-
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