J/MNRAS/385/2097ivo://CDS.VizieR/J/MNRAS/385/2097doi:10.26093/cds/vizier.73852097CDSRawle T.D.Smith R.J.Lucey J.R.Hudson M.J.Wegner G.A.2024-07-06T20:15:48Z2008-12-07T14:39:11ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesphotometryultraviolet-astronomyredshiftedWe present GALEX near-ultraviolet (NUV) and Two-Micron All-Sky Survey J-band photometry for red-sequence galaxies in local clusters. We define quiescent samples according to a strict emission threshold, removing galaxies with very recent star formation. We analyse the NUVJ colour-magnitude relation (CMR) and find that the intrinsic scatter is an order of magnitude larger than for the analogous optical CMR (~0.35 rather than 0.05mag), in agreement with previous studies. Comparing the NUVJ colours with spectroscopically derived stellar population parameters, we find a strong (>5.5sigma) correlation with metallicity, only a marginal trend with age, and no correlation with the alpha/Fe ratio. We explore the origin of the large scatter and conclude that neither aperture effects nor the UV upturn phenomenon contribute significantly. We show that the scatter could be attributed to simple 'frosting' by either a young or a low-metallicity subpopulation.2008MNRAS.385.2097Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/385/2097CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : The 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/AJ/130/825 : GALEX ultraviolet variability catalog (Welsh+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/385/2097https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/385/2097http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/385/2097https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/385/2097https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/385/2097http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/385/2097GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/385/2097/table4 (*Data for galaxies in the SSC sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/385/2097/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/385/2097/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/385/2097/table4?GETtext/xml+votable180.050000true200.8704167-31.71166670.005555555555555556Cone search capability for table J/MNRAS/385/2097/table3 (Data for galaxies in the NFPS sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/385/2097/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/385/2097/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/385/2097/table3?GETtext/xml+votable180.050000true2.52625-28.77305560.0055555555555555565/2067 4504 10959 6/1004 1006 2261 2346 2432 8446 8785 8788 9465 9467-9468 9470 16421 16423 16432 16434 16492-16494 18411 18605 18607 18618 19999 20021 20481 20483 20706-20707 24943 24954 25975 25981 27224 33234-33235 33628 33759 34442 37547 37550 38913 38916 43835 43921 43945 43948 43950 45975 45981 46018 46024https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/385/2097?format=asciiUVOpticaldefaultJ/MNRAS/385/2097/table4*Data for galaxies in the SSC samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy name, NFPJHHMMSS.s+DDMMSS or 2MASXJHHMMSSss+DDMMSSsmeta.id;meta.maincharn_GalaxySimbad column added by the CDSmeta.notecharczGalaxy cz in heliocentric framekm/spos.frame;obs.field;pos.heliocentricintJmagApparent J magnitude (G1)magphot.mag;em.IR.Jfloate_Jmagrms uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatNUV-JNUV-J colour index (G1)magphot.color;em.UV;em.optfloate_NUV-Jrms uncertainty on NUV-Jmagstat.errorfloatlog(Age)? Agelog(Gyr)time.agefloatnullablee_log(Age)? rms uncertainty on Agelog(Gyr)stat.errorfloatnullable[Z/H]? [Z/H] abundancelog(Sun)phys.abundfloatnullablee_[Z/H]? rms uncertainty on [Z/H]log(Sun)stat.error;src.redshiftfloatnullable[alpha/Fe]? [{alpha}/Fe] abundancelog(Sun)phys.abundfloatnullablee_[alpha/Fe]? rms uncertainty on [{alpha}/Fe]log(Sun)stat.error;phys.abundfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/385/2097/table3Data for galaxies in the NFPS samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designation (NFPJHHMMSS.s+DDMMSS)meta.id;meta.maincharn_GalaxySimbad column added by the CDSmeta.notecharczCMBMean cluster cz in CMB framekm/sphys.veloc;pos.cmbintczGalaxy cz in heliocentric framekm/spos.frame;obs.field;pos.heliocentricintJmagApparent J magnitude (G1)magphot.mag;em.IR.Jfloate_Jmagrms uncertainty on Jmagmagstat.error;phot.mag;em.IR.JfloatNUV-JNUV-J colour index (G1)magphot.color;em.UV;em.optfloate_NUV-Jrms uncertainty on NUV-Jmagstat.errorfloatFUV-J? FUV-J colour index (G1)magphot.color;em.UV;em.optfloatnullablee_FUV-J? rms uncertainty on FUV-Jmagstat.errorfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main