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dc.contributor.authorKaviraj, S.
dc.contributor.authorDevriendt, J.E.G.
dc.contributor.authorFerreras, I.
dc.contributor.authorYi, S.K.
dc.date.accessioned2013-10-30T11:00:56Z
dc.date.available2013-10-30T11:00:56Z
dc.date.issued2005-06-11
dc.identifier.citationKaviraj , S , Devriendt , J E G , Ferreras , I & Yi , S K 2005 , ' The elliptical galaxy colour-magnitude relation as a discriminant between the monolithic and merger paradigms ' , Monthly Notices of the Royal Astronomical Society , vol. 360 , no. 1 , pp. 60-68 . https://doi.org/10.1111/j.1365-2966.2005.08883.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 2067911
dc.identifier.otherPURE UUID: 5b036855-852b-4cb1-bb54-eda31dd91f47
dc.identifier.otherScopus: 20744433362
dc.identifier.otherORCID: /0000-0002-5601-575X/work/77850155
dc.identifier.urihttp://hdl.handle.net/2299/11919
dc.description.abstractThe colour-magnitude relation (CMR) of cluster elliptical galaxies has been widely used to constrain their star formation histories (SFHs) and to discriminate between the monolithic collapse and merger paradigms of elliptical galaxy formation. We use a Λ cold dark matter hierarchical merger model of galaxy formation to investigate the existence and redshift evolution of the elliptical galaxy CMR in the merger paradigm. We show that the SFH of cluster ellipticals predicted by the model is quasi-monolithic, with only ∼10 per cent of the total stellar mass forming after z ∼ 1. The quasi-monolithic SFH results in a predicted CMR that agrees well with its observed counterpart in the redshift range 0 ∼ z ∼ 1.27. We use our analysis to argue that the elliptical-only CMR can be used to constrain the SFHs of present-day cluster ellipticals only if we believe a priori in the monolithic collapse model. It is not a meaningful tool for constraining the SFH in the merger paradigm, since a progressively larger fraction of the progenitor set of present-day cluster ellipticals is contained in late-type star-forming systems at higher redshift, which cannot be ignored when deriving the SFHs. Hence, the elliptical-only CMR is not a useful discriminant between the two competing theories of elliptical galaxy evolution.en
dc.format.extent9
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.titleThe elliptical galaxy colour-magnitude relation as a discriminant between the monolithic and merger paradigmsen
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=20744433362&partnerID=8YFLogxK
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2005.08883.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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