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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.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.accessioned2010-06-30T08:48:52Z
dc.date.available2010-06-30T08:48:52Z
dc.date.issued2010
dc.identifier.citationDarg , D W , Kaviraj , S , Lintott , C J , Silk , J , Schawinski , K , Sarzi , M , Bamford , S , Andreescu , D , Murray , P , Nichol , R C , Thomas , D , Raddick , M J , Szalay , A S , Vandenberg , J & Slosar , A 2010 , ' Galaxy Zoo: The properties of merging galaxies in the nearby Universe - Local environments, colours, masses, star formation rates and AGN activity ' , Monthly Notices of the Royal Astronomical Society , vol. 401 , no. 3 , pp. 1552-1563 . https://doi.org/10.1111/j.1365-2966.2009.15786.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 155113
dc.identifier.otherPURE UUID: e3fa39a7-ca86-4c72-98a4-12fc45d04e48
dc.identifier.otherdspace: 2299/4604
dc.identifier.otherScopus: 73949135348
dc.identifier.urihttp://hdl.handle.net/2299/4604
dc.description‘The definitive version is available at www3.interscience.wiley.com '. Copyright Royal Astronomical Society.
dc.description.abstractFollowing the study of Darg et al., we explore the environments, optical colours, stellar masses, star formation and active galactic nucleus activity in a sample of 3003 pairs of merging galaxies drawn from the Sloan Digital Sky Survey using visual classifications from the Galaxy Zoo project. While Darg et al. found that the spiral-to-elliptical ratio in (major) mergers appeared higher than that of the global galaxy population, no significant differences are found between the environmental distributions of mergers and a randomly selected control sample. This makes the high occurrence of spirals in mergers unlikely to be an environmental effect and must therefore arise from differing time-scales of detectability for spirals and ellipticals. We find that merging galaxies have a wider spread in colour than the global galaxy population, with a significant blue tail resulting from intense star formation in spiral mergers. Galaxies classed as star-forming using their emission-line properties have average star formation rates approximately doubled by the merger process though star formation is negligibly enhanced in merging elliptical galaxies. We conclude that the internal properties of galaxies significantly affect the time-scales over which merging systems can be detected (as suggested by recent theoretical studies) which leads to spirals being 'over-observed' in mergers. We also suggest that the transition mass 3 × 10 M, noted by Kauffmann et al., below which ellipticals are rare could be linked to disc survival/destruction in mergers. © 2009 RAS.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.titleGalaxy Zoo: The properties of merging galaxies in the nearby Universe - Local environments, colours, masses, star formation rates and AGN activityen
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=73949135348&partnerID=8YFLogxK
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2009.15786.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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