dc.contributor.author | Kaviraj, S. | |
dc.contributor.author | Khochfar, S. | |
dc.contributor.author | Schawinski, K. | |
dc.contributor.author | Silk, J. | |
dc.contributor.author | Yi, S.K. | |
dc.contributor.author | Gawiser, E. | |
dc.contributor.author | Virani, S.N. | |
dc.contributor.author | Cardamone, C.N. | |
dc.contributor.author | van Dokkum, P.G. | |
dc.contributor.author | Urry, C.M. | |
dc.date.accessioned | 2013-08-06T10:03:16Z | |
dc.date.available | 2013-08-06T10:03:16Z | |
dc.date.issued | 2008-07 | |
dc.identifier.citation | Kaviraj , S , Khochfar , S , Schawinski , K , Silk , J , Yi , S K , Gawiser , E , Virani , S N , Cardamone , C N , van Dokkum , P G & Urry , C M 2008 , ' The UV colours of high-redshift early-type galaxies : Evidence for recent star formation and stellar mass assembly over the last 8 billion years ' , Monthly Notices of the Royal Astronomical Society , vol. 388 , no. 1 , pp. 67-79 . https://doi.org/10.1111/j.1365-2966.2008.13392.x | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ORCID: /0000-0002-5601-575X/work/77850170 | |
dc.identifier.uri | http://hdl.handle.net/2299/11314 | |
dc.description.abstract | We combine deep optical and NIR (UBVRIzJK) photometry from the Multiwavelength Survey by Yale-Chile (MUSYC) with redshifts from the COMBO-17 survey to perform a large-scale study of the rest-frame ultraviolet (UV) properties of 674 high-redshift (0.5 <z <1) early-type galaxies, drawn from the Extended Chandra Deep Field-South (E-CDFS). Galaxy morphologies are determined through visual inspection of Hubble Space Telescope (HST) images taken from the GEMS survey. We harness the sensitivity of the UV to young ( 0.5, implying that the UV is dominated by young stars, we find compelling evidence that early-types of all luminosities form stars over the lifetime of the Universe, although the bulk of their star formation is already complete at high redshift. This 'tail-end' of star formation is measurable and not negligible, with luminous [-23 <M(V) <-20.5] early-types potentially forming 10-15 per cent of their mass since z = 1, with less luminous early-types [M(V) > -20.5] potentially forming 30-60 per cent of their mass after z = 1. This, in turn, implies that intermediate-age stellar populations should be abundant in local early-type galaxies, as expected in hierarchical cosmology. | en |
dc.format.extent | 13 | |
dc.format.extent | 855189 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | The UV colours of high-redshift early-type galaxies : Evidence for recent star formation and stellar mass assembly over the last 8 billion years | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre of Data Innovation Research | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1111/j.1365-2966.2008.13392.x | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |