The LOFAR two-metre sky survey : III. First data release : optical/infrared identifications and value-added catalogue

2019
journal article
article
dc.abstract.enThe LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120–168 MHz survey of the northern sky with diverse and ambitious science goals. Many of the scientific objectives of LoTSS rely upon, or are enhanced by, the association or separation of the sometimes incorrectly catalogued radio components into distinct radio sources and the identification and characterisation of the optical counterparts to these sources. We present the source associations and optical and/or IR identifications for sources in the first data release, which are made using a combination of statistical techniques and visual association and identification. We document in detail the colour- and magnitude-dependent likelihood ratio method used for statistical identification as well as the Zooniverse project, called LOFAR Galaxy Zoo, used for visual classification. We describe the process used to select which of these two different methods is most appropriate for each LoTSS source. The final LoTSS-DR1-IDs value-added catalogue presented contains 318 520 radio sources, of which 231 716 (73%) have optical and/or IR identifications in Pan-STARRS and WISE.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomicznepl
dc.contributor.authorWilliams, W. L.pl
dc.contributor.authorHardcastle, M. J.pl
dc.contributor.authorBest, P. N.pl
dc.contributor.authorSabater, J.pl
dc.contributor.authorCroston, J. H.pl
dc.contributor.authorDuncan, K. J.pl
dc.contributor.authorShimwell, T. W.pl
dc.contributor.authorRöttgering, H. J. A.pl
dc.contributor.authorNisbet, D.pl
dc.contributor.authorGürkan, G.pl
dc.contributor.authorAlegre, L.pl
dc.contributor.authorCochrane, R. K.pl
dc.contributor.authorGoyal, Artipl
dc.contributor.authorHale, C. L.pl
dc.contributor.authorJackson, N.pl
dc.contributor.authorJamrozy, Marek - 128434 pl
dc.contributor.authorKondapally, R.pl
dc.contributor.authorKunert-Bajraszewska, M.pl
dc.contributor.authorMahatma, V. H.pl
dc.contributor.authorMingo, B.pl
dc.contributor.authorMorabito, L. K.pl
dc.contributor.authorPrandoni, I.pl
dc.contributor.authorRoskowinski, C.pl
dc.contributor.authorShulevski, A.pl
dc.contributor.authorSmith, D. J. B.pl
dc.contributor.authorTasse, C.pl
dc.contributor.authorUrquhart, S.pl
dc.contributor.authorWebster, B.pl
dc.contributor.authorWhite, G. J.pl
dc.contributor.authorBeswick, R. J.pl
dc.contributor.authorCallingham, J. R.pl
dc.contributor.authorChyży, Krzysztof - 100034 pl
dc.contributor.authorde Gasperin, F.pl
dc.contributor.authorHarwood, J. J.pl
dc.contributor.authorHoeft, M.pl
dc.contributor.authorIacobelli, M.pl
dc.contributor.authorMcKean, J. P.pl
dc.contributor.authorMechev, A. P.pl
dc.contributor.authorMiley, G. K.pl
dc.contributor.authorSchwarz, D. J.pl
dc.contributor.authorvan Weeren, R. J.pl
dc.date.accessioned2019-09-04T09:17:26Z
dc.date.available2019-09-04T09:17:26Z
dc.date.issued2019pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalReproduced with permission from Astronomy & Astrophysics, © ESOpl
dc.description.versionostateczna wersja wydawcy
dc.description.volume622pl
dc.identifier.articleidA2pl
dc.identifier.doi10.1051/0004-6361/201833564pl
dc.identifier.eissn1432-0746pl
dc.identifier.issn0004-6361pl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/81771
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 4.0 Międzynarodowa*
dc.rights.licenceOTHER
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.pl*
dc.share.typeinne
dc.subject.ensurveyspl
dc.subject.encataloguespl
dc.subject.enradio continuum: generalpl
dc.subtypeArticlepl
dc.titleThe LOFAR two-metre sky survey : III. First data release : optical/infrared identifications and value-added cataloguepl
dc.title.journalAstronomy & Astrophysicspl
dc.title.volumeLOFAR Surveys : a new window on the Universepl
dc.typeJournalArticlepl
dspace.entity.typePublication
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