J/ApJS/240/1ivo://CDS.VizieR/J/ApJS/240/1doi:10.26093/cds/vizier.22400001CDSZaritsky D.Donnerstein R.Dey A.Kadowaki J.Zhang H.Karunakaran A.,Martinez-Delgado D.Rahman M.Spekkens K.2020-07-20T07:53:09Z2019-05-23T15:07:41ZCDS support team

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

cds-question@unistra.frgalaxiesphotometrygalaxy-clusterssurveysvisible-astronomyWe present a homogeneous catalog of 275 large (effective radius >~5.3") ultra-diffuse galaxy (UDG) candidates lying within an ~290deg^2^ region surrounding the Coma Cluster. The catalog results from our automated postprocessing of data from the Legacy Surveys, a three-band imaging survey covering 14000deg^2^ of the extragalactic sky. We describe a pipeline that identifies UDGs and provides their basic parameters. The survey is as complete in these large UDGs as previously published UDG surveys of the central region of the Coma Cluster. We conclude that the majority of our detections are at roughly the distance of the Coma Cluster, implying effective radii >=2.5kpc, and that our sample contains a significant number of analogs of DF44 (SMDG1300580+265835), where the effective radius exceeds 4kpc, both within the cluster and in the surrounding field. The g-z color of our UDGs spans a large range, suggesting that even large UDGs may reflect a range of formation histories. A majority of the UDGs are consistent with being lower stellar mass analogs of red sequence galaxies, but we find both red and blue UDG candidates in the vicinity of the Coma Cluster and a relative overabundance of blue UDG candidates in the lower-density environments and the field. Our eventual processing of the full Legacy Surveys data will produce the largest, most homogeneous sample of large UDGs.2019ApJS..240....1Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/240/1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/137/117 : Las Campanas Distant Cluster Survey (LCDCS) (Gonzales+, 2001)J/AJ/127/704 : Low surface brightness galaxies in SDSS (Kniazev+, 2004)J/ApJS/172/615 : GALFIT result for GEMS galaxies (Haussler+, 2007)J/ApJ/772/82 : A catalog of globular cluster systems (Harris+, 2013)J/MNRAS/446/120 : ATLAS3D project. XXIX (Duc+, 2015)J/ApJ/813/L15 : Dwarf galaxies in Fornax cluster from NGFS (Munoz+, 2015)J/ApJS/225/11 : Subaru-UDGs in the Coma cluster (Yagi+, 2016)J/ApJ/844/157 : UDGs found in deep HST images of HFF (Lee+, 2017)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/ApJ/857/104 : Low surface brightness galaxies from HSC-SSP (Greco+, 2018)J/ApJ/857/144 : Tidal features from RESOLVE + DECaLS surveys (Hood+, 2018)http://www.desi.lbl.gov/ : The Dark Energy Spectrocopic Instrument (DESI) pagehttp://archive.noao.edu/ : NOAO science archive home pagehttp://www.legacysurvey.org/ : Legacy surveys home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/240/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/240/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/240/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/240/1https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/240/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/240/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/240/1/table2 (Ultra diffuse galaxy (UDG) properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/240/1/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/240/1/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/240/1/table2?GETtext/xml+votable180.050000true183.033401528.27501490.0055555555555555565/2594 2595 2600 7037 7123 7126 7129 7132 6/10265 10270 10276 10288 10289 10295 10298 10301 10336 10339 10342 10348 10370 10371 10372 10374 10395 10396 10397 10398 10404 10405 10410 10411 10420 10433 10436 10438 10439 10440 10442 10754 10758 10760 10761 10763 27965 27966 27967 27983 27994 27996 27998 28009 28010 28015 28018 28019 28024 28030 28054 28055 28060 28061 28062 28096 28101 28113 28126 28127 28128 28129 28131 28134 28135 28141 28142 28143 28146 28147 28152 28155 28437 28482 28485 28488 28490 28491 28497 28498 28500 28503 28512 28513 28515 28537 28538 28539 285401.9810291497828372e-19 4.973527819473193e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/240/1?format=asciiOpticaldefaultJ/ApJS/240/1/table2Ultra diffuse galaxy (UDG) propertiese_b/a[0.01/0.1] 1 sigma uncertainty in b/astat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMDGGalaxy name in SMDG catalog (HHMMSSs+DDMMSS; J2000)meta.id;meta.maincharRAJ2000Right Ascension, decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination, decimal degrees (J2000)degpos.eq.dec;meta.mainmu0g[24/26.3]? Central surface brightness, g band, fixed n=1 model fit (1)mag.arcsec**-2phot.mag.sb;em.opt.Bfloatnullablee_mu0g[0.1/0.7]? 1sigma uncertainty in mu0g (1)mag.arcsec**-2stat.errorfloatnullablemu0r[22/26]? Central surface brightness, r band, fixed n=1 model fit (1)mag.arcsec**-2phot.mag.sb;em.opt.Rfloatnullablee_mu0r[0.1/0.7]? 1sigma uncertainty in mu0r (1)mag.arcsec**-2stat.errorfloatnullablemu0z[21/26]? Central surface brightness, z band, fixed n=1 model fit (1)mag.arcsec**-2phot.mag.sb;em.opt.Ifloatnullablee_mu0z[0.1/3.4]? 1sigma uncertainty in mu0z (1)mag.arcsec**-2stat.errorfloatnullableRe[5.3/75.2] Effective radius, fixed n=1 model fit to full image stack (1)arcsecphys.angSize;meta.modelledfloate_Re[0.1/11] 1 sigma uncertainty in Rearcsecstat.errorfloatb/a[0.3/1] Axis ratio, fixed n=1 model fit to full image stackphys.angSize;arith.ratiofloatthetaPosition angle, measured N to E, fixed n=1 model fit to full image stackdegpos.posAng;meta.modelledinte_theta[1/186] 1 sigma uncertainty in thetadegstat.error;pos.posAngintgtmag[16/22.5]? CTIO/DECam g band total apparent AB magnitude, floating n model fit (1)magphot.mag;em.opt.Bfloatnullablee_gtmag[0.1/2.3]? 1 sigma uncertainty in gtmagmagstat.error;phot.magfloatnullablertmag[14.7/22.4]? CTIO/DECam r band total apparent AB magnitude, floating n model fit (1)magphot.mag;em.opt.Rfloatnullablee_rtmag[0.1/4]? 1 sigma uncertainty in rtmagmagstat.error;phot.magfloatnullableztmag[16.6/22.3]? CTIO/DECam z band total apparent AB magnitude, floating n model fit (1)magphot.mag;em.opt.Ifloatnullablee_ztmag[0.1/4.3]? 1 sigma uncertainty in ztmagmagstat.error;phot.magfloatnullable[VAM2015]Cross-listing with Large Dragonfly Coma UDGs (van Dokkum+, 2015ApJ...798L..45V); numbers added from Table 3 by CDSmeta.id.crosschar[YKK2016]? Cross-listing with Large Yagi Coma UDGs (Yagi+, 2016, J/ApJS/225/11); numbers added from Table 4 by CDSmeta.id.crossintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar