The effect of environment on the ultraviolet color-magnitude relation of early-type galaxies
dc.contributor.author | Schawinski, K. | |
dc.contributor.author | Kaviraj, S. | |
dc.contributor.author | Khochfar, S. | |
dc.contributor.author | Yoon, S.-J. | |
dc.contributor.author | Yi, S.K. | |
dc.contributor.author | Lee, Y.-W. | |
dc.contributor.author | Deharveng, J.-M. | |
dc.contributor.author | Boselli, A. | |
dc.contributor.author | Donas, J. | |
dc.contributor.author | Milliard, B. | |
dc.contributor.author | Barlow, T. | |
dc.contributor.author | Conrow, T. | |
dc.contributor.author | Forster, K. | |
dc.contributor.author | Friedman, P.G. | |
dc.contributor.author | Martin, D.C. | |
dc.contributor.author | Morrissey, P. | |
dc.contributor.author | Seibert, M. | |
dc.contributor.author | Small, T. | |
dc.contributor.author | Wyder, T. | |
dc.contributor.author | Neff, S. | |
dc.contributor.author | Schiminovich, D. | |
dc.contributor.author | Blanchi, L. | |
dc.contributor.author | Heckman, T. | |
dc.contributor.author | Szalay, A. | |
dc.contributor.author | Madore, B. | |
dc.contributor.author | Rich, R.M. | |
dc.date.accessioned | 2013-10-30T12:00:56Z | |
dc.date.available | 2013-10-30T12:00:56Z | |
dc.date.issued | 2007-12-01 | |
dc.identifier.citation | Schawinski , K , Kaviraj , S , Khochfar , S , Yoon , S-J , Yi , S K , Lee , Y-W , Deharveng , J-M , Boselli , A , Donas , J , Milliard , B , Barlow , T , Conrow , T , Forster , K , Friedman , P G , Martin , D C , Morrissey , P , Seibert , M , Small , T , Wyder , T , Neff , S , Schiminovich , D , Blanchi , L , Heckman , T , Szalay , A , Madore , B & Rich , R M 2007 , ' The effect of environment on the ultraviolet color-magnitude relation of early-type galaxies ' , Astrophysical Journal, Supplement Series , vol. 173 , no. 2 , pp. 512-523 . https://doi.org/10.1086/516631 | |
dc.identifier.issn | 0067-0049 | |
dc.identifier.other | PURE: 2065645 | |
dc.identifier.other | PURE UUID: ae4a2497-d78f-423b-93fe-951dedd57fe1 | |
dc.identifier.other | Scopus: 39449114004 | |
dc.identifier.other | ORCID: /0000-0002-5601-575X/work/77850194 | |
dc.identifier.uri | http://hdl.handle.net/2299/11926 | |
dc.description.abstract | We use GALEX near-UV (NUV ) photometry of a sample of early-type galaxies selected in the SDSS (Sloan Digital Sky Survey) to study the UV color-magnitude relation (CMR). NUV - r color is an excellent tracer of even small amounts (∼1 % mass fraction) of recent (≲1 Gyr) star formation, and so the NUV - r CMR allows us to study the effect of environment on the recent star formation history. We analyze a volume-limited sample of 839 visually inspected early-type galaxies in the redshift range 0.05 <z <0.10 brighter than M of - 21.5 with any possible emission-line or radio-selected active galactic nuclei (AGNs) removed to avoid contamination. We find that contamination by AGN candidates and late-type interlopers highly bias any study of recent star formation in early-type galaxies and that, after removing those, our lower limit to the fraction of massive early-type galaxies showing signs of recent star formation is roughly 30% ± 3%. This suggests that residual star formation is common even among the present day early-type galaxy population. We find that the fraction of UV-bright early-type galaxies is 25% higher in low-density environments. However, the density effect is clear only in the lowest density bin. The blue galaxy fraction for the subsample of the brightest early-type galaxies, however, shows a very strong density dependence, in the sense that the blue galaxy fraction is lower in a higher density region. | en |
dc.format.extent | 12 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal, Supplement Series | |
dc.title | The effect of environment on the ultraviolet color-magnitude relation of early-type galaxies | en |
dc.contributor.institution | Centre for Astrophysics Research | |
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 | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=39449114004&partnerID=8YFLogxK | |
rioxxterms.version | SMUR | |
rioxxterms.versionofrecord | https://doi.org/10.1086/516631 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |