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dc.contributor.authorDarg, D.W.
dc.contributor.authorKaviraj, S.
dc.contributor.authorLintott, C.J.
dc.contributor.authorSilk, J.
dc.contributor.authorSchawinski, K.
dc.contributor.authorSarzi, M.
dc.contributor.authorBamford, S.
dc.contributor.authorProctor, R.
dc.contributor.authorAndreescu, D.
dc.contributor.authorMurray, P.
dc.contributor.authorNichol, R.C.
dc.contributor.authorThomas, D.
dc.contributor.authorRaddick, M.J.
dc.contributor.authorSzalay, A.S.
dc.contributor.authorVandenberg, J.
dc.contributor.authorSlosar, A.
dc.date.accessioned2010-06-30T10:28:38Z
dc.date.available2010-06-30T10:28:38Z
dc.date.issued2010
dc.identifier.citationDarg , D W , Kaviraj , S , Lintott , C J , Silk , J , Schawinski , K , Sarzi , M , Bamford , S , Proctor , R , Andreescu , D , Murray , P , Nichol , R C , Thomas , D , Raddick , M J , Szalay , A S , Vandenberg , J & Slosar , A 2010 , ' Galaxy Zoo: the fraction of merging galaxies in the SDSS and their morphologies ' , Monthly Notices of the Royal Astronomical Society , vol. 401 , no. 2 , pp. 1043-1056 . https://doi.org/10.1111/j.1365-2966.2009.15686.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 157310
dc.identifier.otherPURE UUID: af90148a-4427-4c51-85c5-5dec71d36da3
dc.identifier.otherdspace: 2299/4610
dc.identifier.otherScopus: 73649084086
dc.identifier.urihttp://hdl.handle.net/2299/4610
dc.description‘The definitive version is available at www3.interscience.wiley.com '. Copyright Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2009.15686.x
dc.description.abstractWe present the largest, most homogeneous catalogue of merging galaxies in the nearby Universe obtained through the Galaxy Zoo project – an interface on the World Wide Web enabling large-scale morphological classification of galaxies through visual inspection of images from the Sloan Digital Sky Survey (SDSS). The method converts a set of visually inspected classifications for each galaxy into a single parameter (the 'weighted-merger-vote fraction,'fm) which describes our confidence that the system is part of an ongoing merger. We describe how fm is used to create a catalogue of 3003 visually selected pairs of merging galaxies from the SDSS in the redshift range 0.005 < z < 0.1 . We use our merger sample and values of fm applied to the SDSS Main Galaxy Spectral sample to estimate that the fraction of volume-limited (Mr < −20.55) major mergers (1/3 < M*1/M*2 < 3) in the nearby Universe is 1–3 ×C per cent, where C∼ 1.5 is a correction factor for spectroscopic incompleteness. Having visually classified the morphologies of the constituent galaxies in our mergers, we find that the spiral-to-elliptical ratio of galaxies in mergers is higher by a factor of ∼2 relative to the global population. In a companion paper, we examine the internal properties of these merging galaxies and conclude that this high spiral-to-elliptical ratio in mergers is due to a longer time-scale over which mergers with spirals are detectable compared to mergers with ellipticals.en
dc.format.extent14
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.titleGalaxy Zoo: the fraction of merging galaxies in the SDSS and their morphologiesen
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.identifier.urlhttp://www.scopus.com/inward/record.url?scp=73649084086&partnerID=8YFLogxK
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted2010
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2009.15686.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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