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dc.contributor.authorLange, Rebecca
dc.contributor.authorDriver, Simon P.
dc.contributor.authorRobotham, Aaron S. G.
dc.contributor.authorKelvin, Lee S.
dc.contributor.authorGraham, Alister W.
dc.contributor.authorAlpaslan, Mehmet
dc.contributor.authorAndrews, Stephen K.
dc.contributor.authorBaldry, Ivan K.
dc.contributor.authorBamford, Steven
dc.contributor.authorBland-Hawthorn, Joss
dc.contributor.authorBrough, Sarah
dc.contributor.authorCluver, Michelle E.
dc.contributor.authorConselice, Christopher J.
dc.contributor.authorDavies, Luke J. M.
dc.contributor.authorHaeussler, Boris
dc.contributor.authorKonstantopoulos, Iraklis S.
dc.contributor.authorLoveday, Jon
dc.contributor.authorMoffett, Amanda J.
dc.contributor.authorNorberg, Peder
dc.contributor.authorPhillipps, Steven
dc.contributor.authorTaylor, Edward N.
dc.contributor.authorLopez-Sanchez, Angel R.
dc.contributor.authorWilkins, Stephen M.
dc.identifier.citationLange , R , Driver , S P , Robotham , A S G , Kelvin , L S , Graham , A W , Alpaslan , M , Andrews , S K , Baldry , I K , Bamford , S , Bland-Hawthorn , J , Brough , S , Cluver , M E , Conselice , C J , Davies , L J M , Haeussler , B , Konstantopoulos , I S , Loveday , J , Moffett , A J , Norberg , P , Phillipps , S , Taylor , E N , Lopez-Sanchez , A R & Wilkins , S M 2015 , ' Galaxy And Mass Assembly (GAMA) : mass-size relations of z < 0.1 galaxies subdivided by Sérsic index, colour and morphology ' , Monthly Notices of the Royal Astronomical Society , vol. 447 , no. 3 , pp. 2603-2630 .
dc.identifier.otherPURE: 182388650
dc.identifier.otherPURE UUID: 1813adb1-83e1-406c-9f25-745e6552631d
dc.identifier.otherWOS: 000350273200042
dc.identifier.otherScopus: 84928795849
dc.identifier.otherWOS: 000350273200042
dc.description.abstractWe use data from the Galaxy And Mass Assembly (GAMA) survey in the redshift range 0.01 < z < 0.1 (8399 galaxies in g to Ks bands) to derive the stellar mass–half-light radius relations for various divisions of ‘early’- and ‘late’-type samples. We find that the choice of division between early and late (i.e. colour, shape, morphology) is not particularly critical; however, the adopted mass limits and sample selections (i.e. the careful rejection of outliers and use of robust fitting methods) are important. In particular, we note that for samples extending to low stellar mass limits <1010ΜΘ the Sérsic index bimodality, evident for high-mass systems, becomes less distinct and no-longer acts as a reliable separator of early- and late-type systems. The final set of stellar mass–half-light radius relations are reported for a variety of galaxy population subsets in 10 bands (ugrizZY JHKs) and are intended to provide a comprehensive low-z benchmark for the many ongoing high-z studies. Exploring the variation of the stellar mass–half-light radius relations with wavelength, we confirm earlier findings that galaxies appear more compact at longer wavelengths albeit at a smaller level than previously noted: at <1010ΜΘ both spiral systems and ellipticals show a decrease in size of 13 per cent from g to Ks (which is near linear in log wavelength). Finally, we note that the sizes used in this work are derived from 2D Sérsic light profile fitting (using GALFIT3), i.e. elliptical semimajor half-light radii, improving on earlier low-z benchmarks based on circular apertures.
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rightsThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society, © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.en
dc.subjectGalaxies: elliptical and lenticular, cDen
dc.subjectGalaxies: formationen
dc.subjectGalaxies: fundamental parametersen
dc.subjectGalaxies: spiralen
dc.subjectGalaxies: statisticsen
dc.subjectDigital Sky Surveyen
dc.subjectDwarf elliptic galaxiesen
dc.subjectDisk galaxiesen
dc.subjectKormedy relationen
dc.subjectLuminosity sizeen
dc.subjectSpiral galaxiesen
dc.subjectRedshift surveyen
dc.subjectSpace densityen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleGalaxy And Mass Assembly (GAMA) : mass-size relations of z < 0.1 galaxies subdivided by Sérsic index, colour and morphologyen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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