J/MNRAS/456/790ivo://CDS.VizieR/J/MNRAS/456/790doi:10.26093/cds/vizier.74560790CDSCapozzi D.Maraston C.Daddi E.Renzini A.Strazzullo V.Gobat R.2024-08-15T20:17:46Z2016-11-10T09:23:21ZCDS support team

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

cds-question@unistra.frastronomical-modelshorizontal-branch-starsspectral-energy-distributionWe study the debated contribution from thermally pulsing asymptotic-giant-branch (TP-AGB) stars in evolutionary population synthesis models. We investigate the spectral energy distributions (SEDs) of a sample of 51 spectroscopically confirmed, high-z (1.3<z_spec_<2.7), galaxies using three evolutionary population synthesis models with strong, mild and light TP-AGB. Our sample is the largest of spectroscopically confirmed galaxies on which such models are tested so far. Galaxies were selected as passive, but we model them using a variety of star formation histories in order not to be dependent on this pre-selection. We find that the observed SEDs are best fitted with a significant contribution of TP-AGB stars or with substantial dust attenuation. Without including reddening, TP-AGB-strong models perform better and deliver solutions consistent within 1{sigma} from the best-fitted ones in the vast majority of cases. Including reddening, all models perform similarly. Using independent constraints from observations in the mid- and far-IR, we show that low/negligible dust attenuation, i.e. E(B-V)<~0.05, should be preferred for the SEDs of passively selected galaxies. Given that TP-AGB-light models give systematically older ages for passive galaxies, we suggest number counts of passive galaxies at higher redshifts as a further test to discriminate among stellar population models.2016MNRAS.456..790Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/456/790CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/456/790https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/456/790http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/456/790https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/456/790https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/456/790http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/456/790GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/456/790/table1 (Observed photometry for the HUDF sample in AB magnitudes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/790/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/790/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/790/table1?GETtext/xml+votable180.050000true53.1538031-27.77458640.0055555555555555566/359352.483060040379131e-20 5.392088688122682e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/456/790?format=asciidefaultJ/MNRAS/456/790/table1Observed photometry for the HUDF sample in AB magnitudesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNIDNew identification numbermeta.id;meta.mainintUDFUDF identification number from Maraston et al. (2006ApJ...652...85M)meta.idintSEDSED plot of this galaxymeta.ref.urlcharzspSpectroscopic redshiftsrc.redshiftfloatl_UcmagUpper Limit at 1{sigma} level flag on Ucmagmeta.code.errorcharUcmagCTIO U magnitude (AB)magphot.mag;em.opt.Ufloate_Ucmag? rms uncertainty on CTIO U magnitudemagstat.error;phot.mag;em.opt.Ufloatnullablel_UvmagUpper Limit at 1{sigma} level flag on Uvmagmeta.code.errorcharUvmagVIMOS U magnitude (AB)magphot.mag;em.opt.Ufloate_Uvmag? rms uncertainty on CVIMOS U magnitudemagstat.error;phot.mag;em.opt.UfloatnullableF435WHST F435W magnitude (AB)magphot.mag;em.opt.Bfloate_F435Wrms uncertainty on F435Wmagstat.errorfloatF606WHST F606W magnitude (AB)magphot.mag;em.opt.Rfloate_F606Wrms uncertainty on F606Wmagstat.errorfloatF775WHST F775W magnitude (AB)magphot.mag;em.opt.Ifloate_F775Wrms uncertainty on F775Wmagstat.errorfloatF814WHST F814W magnitude (AB)magphot.mag;em.opt.Ifloate_F814Wrms uncertainty on F814Wmagstat.errorfloatF850LPHST F850LP magnitude (AB)magphot.mag;em.opt.Ifloate_F850LPrms uncertainty on F850LPmagstat.errorfloatF105WHST F105W magnitude (AB)magphot.mag;em.IR.Jfloate_F105Wrms uncertainty on F105Wmagstat.errorfloatF125WHST F125W magnitude (AB)magphot.mag;em.IR.Jfloate_F125Wrms uncertainty on F125Wmagstat.errorfloatF160WHST F160W magnitude (AB)magphot.mag;em.IR.Hfloate_F160Wrms uncertainty on F160Wmagstat.errorfloatKsimagISAAC Ks magnitude (AB)magphot.mag;em.IR.Kfloate_Ksimagrms uncertainty on Ksimagmagstat.error;phot.magfloatKshmagHAWK-I Ks magnitude (AB)magphot.mag;em.IR.Kfloate_Kshmagrms uncertainty on HAWK-I Ks magnitudemagstat.error;phot.magfloat[3.6]IRAC 3.6um magnitude (AB)magphot.mag;em.IR.3-4umfloate_[3.6]rms uncertainty on [3.6]magstat.errorfloat[4.5]IRAC 4.5um magnitude (AB)magphot.mag;em.IR.4-8umfloate_[4.5]rms uncertainty on [4.5]magstat.errorfloat[5.8]IRAC 5.8um magnitude (AB)magphot.flux.density;em.IR.4-8umfloate_[5.8]rms uncertainty on [5.8]magstat.errorfloat[8.0]IRAC 8.0um magnitude (AB)magphot.flux.density;em.IR.8-15umfloate_[8.0]rms uncertainty on [8.0]magstat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_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/456/790/tableb1*SED-fitting results for the COSMOS sample using the full-filter-set and the original photometry: no-reddening caserecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/44] Galaxy IDmeta.id;src.class.starGalaxyintzspSpectroscopic redshiftsrc.redshiftfloatModelModelmeta.notechartAgeGyrtime.agefloat[Z/H]Metallicitylog(Sun)phys.abund.ZfloatSFHStar formation historyphys.SFRchi2rReduced chi2stat.fit.chi2floatM*Stellar mass1e+11solMassphys.massfloatl_SFRLimit flag on SFRmeta.code.error;phys.SFRcharSFRStar formation ratesolMass/yrphys.SFRfloatJ/MNRAS/456/790/tableb2*SED-fitting results for the COSMOS sample using the full-filter-set and the original photometry: reddening casel_SFRLimit flag on SFRmeta.code.error;phys.SFRcharID[1/44] Galaxy IDmeta.id;src.class.starGalaxyintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzspSpectroscopic redshiftsrc.redshiftfloatModelModelmeta.notechartAgeGyrtime.agefloat[Z/H]Metallicitylog(Sun)phys.abund.ZfloatSFHStar formation historyphys.SFRchi2rReduced chi2stat.fit.chi2floatM*Stellar mass1e+11solMassphys.massfloatSFRStar formation ratesolMass/yrphys.SFRfloatE(B-V)Reddeningmagphot.color.excessfloatrlawReddenning law (G1)meta.codecharJ/MNRAS/456/790/tableb3*SED-fitting solutions obtained after excluding possibly physically unreliable solutions for both HUDF and COSMOS, using the full-filter set and the original photometry in presence of reddeningIDGalaxy IDmeta.id;src.class.starGalaxyintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzspSpectroscopic redshiftsrc.redshiftfloatModelModelmeta.notechartAgeGyrtime.agefloat[Z/H]Metallicitylog(Sun)phys.abund.ZfloatSFHStar formation historyphys.SFRchi2rReduced chi2stat.fit.chi2floatM*Stellar mass1e+11solMassphys.massfloatl_SFRLimit flag on SFRmeta.code.error;phys.SFRcharSFRStar formation ratesolMass/yrphys.SFRfloatE(B-V)Reddeningmagphot.color.excessfloatrlawReddenning law (G1)meta.codechar