J/ApJS/247/46ivo://CDS.VizieR/J/ApJS/247/46doi:10.26093/cds/vizier.22470046CDSBarbosa C.E.Zaritsky D.Donnerstein R.Zhang H.Dey A.,Mendes de Oliveira C.Sampedro L.Molino A.Costa-Duarte M.V.Coelho P.,Cortesi A.Herpich F.R.Hernandez-Jimenez J.A.Santos-Silva T.,Pereira E.Werle A.Overzier R.A.Cid Fernandes R.Smith Castelli A.V.,Ribeiro T.Schoenell W.Kanaan A.2021-09-07T06:59:57Z2020-07-17T12:36:11ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryredshiftedextinctionmetallicityvisible-astronomystellar-massesstellar-agesWe present the first systematic study of the stellar populations of ultra-diffuse galaxies (UDGs) in the field, integrating the large area search and characterization of UDGs by the SMUDGes survey with the twelve-band optical photometry of the S-PLUS survey. Based on Bayesian modeling of the optical colors of UDGs, we determine the ages, metallicities, and stellar masses of 100 UDGs distributed in an area of ~330deg^2^ in the Stripe 82 region. We find that the stellar masses and metallicities of field UDGs are similar to those observed in clusters and follow the trends previously defined in studies of dwarf and giant galaxies. However, field UDGs have younger luminosity- weighted ages than do UDGs in clusters. We interpret this result to mean that field UDGs have more extended star formation histories, including some that continue to form stars at low levels to the present time. Finally, we examine stellar population scaling relations that show that UDGs are, as a population, similar to other low surface brightness galaxies.2020ApJS..247...46Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/247/46CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/137/117 : Las Campanas Distant Cluster Survey (Gonzales+, 2001)J/ApJ/621/673 : Line indices for 124 early-type galaxies (Thomas+, 2005)J/MNRAS/404/1639 : MILES base models & new line index system (Vazdekis+, 2010)J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA) DR1 (Driver+, 2011)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/ApJ/779/102 : Metallicities of RGB stars in dwarf galaxies (Kirby+, 2013)J/ApJ/794/120 : Sloan Digital Sky Survey coadd. Stripe 82 (Annis+, 2014)J/ApJS/225/11 : Subaru-UDGs in the Coma cluster (Yagi+, 2016)J/MNRAS/456/1359 : IAC Stripe 82 Legacy Project: Photometry (Fliri J.+, 2016)J/ApJ/842/133 : HI-bearing ultra-diffuse ALFALFA galaxies (Leisman+, 2017)J/A+A/608/A142 : Fornax Deep Survey with VST. III. LSB gal. (Venhola+, 2017)J/ApJS/240/1 : SMUDGes. I. First results in Coma Cluster (Zaritsky+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/247/46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/247/46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/247/46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/247/46https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/247/46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/247/46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/247/46/udgs (Stellar population parameters for SMUDGes ultra-diffuse galaxies (UDGs) obtained from SED fitting of the S-PLUS optical data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/247/46/udgs?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/247/46/udgs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/247/46/udgs?GETtext/xml+votable180.050000true1.72625-0.0080560.0055555555555555566/0 17659 17661 17662 17663 17741 17743 17745 17747 17753 17755 17761 17766 17767 17768 17773 17778 17807 17810 17812 17813 17814 17817 17818 17820 17830 17832 17835 17837 17857 17858 17980 17999 18000 18001 18004 18006 18008 18009 18013 18016 18017 18077 18084 18089 18096 18097 18751 18771 18775 18779 18789 18790 18791 18794 18830 18851 18861 18864 19021 19023 19028 19038 19098 19101 19114 19115 19201 23190 23206 23208 23212 30041https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/247/46?format=asciiOpticaldefaultJ/ApJS/247/46/udgsStellar population parameters for SMUDGes ultra-diffuse galaxies (UDGs) obtained from SED fitting of the S-PLUS optical data[Fe/H][-1.5/-0.1] Metallicity (Z)phys.abund.ZfloatAge[0.5/8.6] Age (T)Gyrtime.agefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMDGGalaxy name (HHMMSSs+DDMMSS) (Galaxy)meta.id;meta.maincharAv[0.04/0.2] Total extinction in the V-bandmagphys.absorptionfloate_Av[0.03/0.2] Lower uncertainty on Av (Av_lowerr)magstat.errorfloatE_Av[0.07/0.3] Upper uncertainty on Av (Av_uperr)magstat.error;stat.maxfloate_[Fe/H][0.2/1] Lower uncertainty on [Fe/H] (Z_lowerr)stat.error;phys.abund.FefloatE_[Fe/H][0.3/1.1] Upper uncertainty on [Fe/H] (Z_uperr)stat.error;stat.maxfloate_Age[0.09/5] Lower uncertainty on Age (T_lowerr)Gyrstat.error;time.agefloatE_Age[0.1/8] Upper uncertainty on Age (T_uperr)Gyrstat.error;stat.maxfloatzphot[0.008/0.03] Photometric redshift (photz)src.redshiftfloate_zphot[0.006/0.02] Lower uncertainty on zphot (photz_lowerr)stat.errorfloatE_zphot[0.01/0.03] Upper uncertainty on zphot (photz_uperr)stat.error;stat.maxfloatlogM*[6.8/8.6] Log of stellar mass (logMstar)log(solMass)phys.massfloate_logM*[0.8/1.3] Lower uncertainty on logM* (logMstar_lowerr)log(solMass)stat.errorfloatE_logM*[0.4/0.9] Upper uncertainty on logM* (logMstar_uperr)log(solMass)stat.error;stat.maxfloatS82CatDisplay data from Annis+, 2014 J/ApJ/794/120 and Fliri+, 2016, J/MNRAS/456/1359 within 2"meta.ref.urlintnullable_RAPositions from SMUDGes names (right ascension part)degpos.eq.ra;meta.main_DEPositions from SMUDGes names (declination part)degpos.eq.dec;meta.main