J/ApJ/802/127ivo://CDS.VizieR/J/ApJ/802/127doi:10.26093/cds/vizier.18020127CDSJohnson L.C.Seth A.C.Dalcanton J.J.Wallace M.L.Simpson R.J.,Lintott C.J.Kapadia A.Skillman E.D.Caldwell N.Fouesneau M.,Weisz D.R.Williams B.F.Beerman L.C.Gouliermis D.A.Sarajedini A.2018-07-09T07:58:18Z2015-08-06T09:35:12ZCDS support team

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

cds-question@unistra.frgalaxiesglobular-star-clusterssurveyshst-photometryWe construct a stellar cluster catalog for the Panchromatic Hubble Andromeda Treasury (PHAT) survey using image classifications collected from the Andromeda Project (AP) citizen science website. We identify 2753 clusters and 2270 background galaxies within ~0.5deg^2^ of PHAT imaging searched, or ~400kpc^2^ in deprojected area at the distance of the Andromeda Galaxy (M31). These identifications result from 1.82million classifications of ~20000 individual images (totaling ~7gigapixels) by tens of thousands of volunteers. We show that our crowd-sourced approach, which collects >80 classifications per image, provides a robust, repeatable method of cluster identification. The high spatial resolution Hubble Space Telescope images resolve individual stars in each cluster and are instrumental in the factor of ~6 increase in the number of clusters known within the survey footprint. We measure integrated photometry in six filter passbands, ranging from the near-UV to the near-IR. PHAT clusters span a range of ~8 magnitudes in F475W (g-band) luminosity, equivalent to ~4 decades in cluster mass. We perform catalog completeness analysis using >3000 synthetic cluster simulations to determine robust detection limits and demonstrate that the catalog is 50% complete down to ~500M_{sun}_ for ages <100Myr. We include catalogs of clusters, background galaxies, remaining unselected candidates, and synthetic cluster simulations, making all information publicly available to the community. The catalog published here serves as the definitive base data product for PHAT cluster science, providing a census of star clusters in an L^*^ spiral galaxy with unmatched sensitivity and quality.2015ApJ...802..127Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/802/127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/ocl : Optically visible open clusters and Candidates (Dias+ 2002-2014)V/143 : Revised Bologna Catalog (RBC) of M31 clusters, V.5 (Galleti+ 2012)J/ApJS/215/9 : PHAT X. UV-IR photometry of M31 stars (Williams+, 2014)J/MNRAS/435/2835 : Morphological types from Galaxy Zoo 2 (Willett+, 2013)J/PASP/125/636 : Newly identified star clusters in M 31 (Krienke+, 2013)J/ApJ/752/95 : PHAT stellar cluster survey. I. Year 1 (Johnson+, 2012)J/ApJ/751/122 : Ages and masses for 920 LMC clusters (Popescu+, 2012)J/A+A/529/A25 : Phot. of star clusters in 5 nearby gal. (Silva-Villa+, 2011)J/PASP/122/745 : HST WFPC2 star clusters in M31. III. (Hodge+, 2010)J/AJ/138/1667 : HST survey of young clusters in M31. III. (Barmby+, 2009)J/AJ/138/770 : HST/WFPC survey of M31 bright young clusters (Hodge+, 2009)J/AJ/137/94 : Star clusters in M31 (Caldwell+, 2009)J/PASP/120/1 : HST WFPC2 star clusters in M31. II. (Krienke+, 2008)J/PASP/119/7 : HST WFPC2 star clusters in M31 (Krienke+, 2007)J/A+A/416/917 : RBC of M31 globular clusters (Galleti+, 2004)J/ApJ/559/851 : Young star cluster candidates in M31 (Williams+, 2001)http://www.andromedaproject.org/ : Andromeda Project home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/802/127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/802/127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/802/127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/802/127https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/802/127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/802/127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/802/127/table2 (Andromeda project (AP) cluster catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/table2?GETtext/xml+votable180.050000true11.4355161141.698561940.005555555555555556Cone search capability for table J/ApJ/802/127/tableb1 (Andromeda project (AP) background galaxy catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tableb1?GETtext/xml+votable180.050000true11.4472261142.268671940.005555555555555556Cone search capability for table J/ApJ/802/127/tablec1 (Andromeda project (AP) ancillary catalog (sources with f_cl+gal_>=0.1 not in AP catalogs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tablec1?GETtext/xml+votable180.050000true11.3934930641.774981110.005555555555555556Cone search capability for table J/ApJ/802/127/tablec2 (Synthetic cluster results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tablec2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tablec2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tablec2?GETtext/xml+votable180.050000true11.0126361141.1813350.005555555555555556Cone search capability for table J/ApJ/802/127/tablee1 (Archival (non-PHAT) AP cluster catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tablee1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tablee1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tablee1?GETtext/xml+votable180.050000true10.5226141.435868060.005555555555555556Cone search capability for table J/ApJ/802/127/tablee2 (Archival (non-PHAT) AP background galaxy catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tablee2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tablee2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tablee2?GETtext/xml+votable180.050000true10.8462480641.040393890.005555555555555556Cone search capability for table J/ApJ/802/127/tablee3 (Archival (non-PHAT) AP ancillary catalog (sources with f_cl+gal_>=0.1 not in AP catalogs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/802/127/tablee3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/802/127/tablee3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/802/127/tablee3?GETtext/xml+votable180.050000true10.491241.439038890.0055555555555555566/2622 2623 2666 2709 27521.1796835550914393e-19 7.886974166154988e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/802/127?format=asciidefaultJ/ApJ/802/127/table2Andromeda project (AP) cluster catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_APID[EB]? Extended or Bulge source (1)stat.fit.paramcharAPID[1/54269] Andromeda Project Identification Numbermeta.id;meta.mainintprimaryRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.4/9.1] Aperture radiusarcsecstat.fit.paramfloatReff[-0.04/5.2]? Effective radiusarcsecphys.angSizefloatnullablefcl+g[0/1] Unweighted Cluster+Galaxy click fraction (f_clst+gal_)stat.fit.paramfloatfg[0/1] Galaxy click fraction (f_gal_)stat.fit.paramfloatfclW[0/1] Weighted cluster click fraction (f_clst,W_)stat.fit.paramfloatPCID[1/1728]? ID number in Year-1 PHAT (J/ApJ/752/95)meta.id.crossintnullableAltIDAlternate Name if anymeta.idcharmcor[-0.8/-0]? Aperture correction (2)magphot.mag;arith.difffloatnullablel_F275W[>] F275W 3{sigma} Upper limit flagmeta.code.errorcharF275W[14/28]? HST/WFC3 F275W aperture magnitudemagphot.mag;em.UV.200-300nmfloatnullablee_F275W[0/0.7]? F275W errormagstat.errorfloatnullablel_F336W[>] F336W 3{sigma} Upper limit flagmeta.code.errorcharF336W[12.4/27.3]? HST/WFC3 F336W aperture magnitudemagphot.mag;em.opt.Ufloatnullablee_F336W[0/1]? F336W errormagstat.errorfloatnullablel_F475W[>] F475W 3{sigma} Upper limit flagmeta.code.errorcharF475W[11.2/26.6]? HST/ACS F475W aperture magnitudemagphot.mag;em.opt.Bfloatnullablee_F475W[0/0.4]? F475W errormagstat.errorfloatnullablel_F814W[>] F814W 3{sigma} Upper limit flagmeta.code.errorcharF814W[9.2/24.4]? HST/ACS F814W aperture magnitudemagphot.mag;em.opt.Ifloatnullablee_F814W[0/0.4]? F814W errormagstat.errorfloatnullablel_F110W[>] F110W 3{sigma} Upper limit flagmeta.code.errorcharF110W[12.2/24.4]? HST/WFC3 F110W aperture magnitudemagphot.mag;em.IR.Jfloatnullablee_F110W[0/0.4]? F110W errormagstat.errorfloatnullablel_F160W[>] F160W 3{sigma} Upper limit flagmeta.code.errorcharF160W[7.7/23.5]? HST/WFC3 F160W aperture magnitudemagphot.mag;em.IR.Hfloatnullablee_F160W[0/0.4]? F160W errormagstat.errorfloatnullableCl\New RBC flag classification (link to table d2)meta.ref.urlcharMcatSources within 2" from Caldwell et al. 2009, J/AJ/137/94 and RBC catalog (Galetti et al. 2012, V/143meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/802/127/tableb1Andromeda project (AP) background galaxy catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAPID[8/6068] Andromeda Project Identification Numbermeta.id;meta.mainintprimaryRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.6/13] Aperture radiusarcsecstat.fit.paramfloatfcl+g[0.3/1] Unweighted Cluster+Galaxy click fractionstat.fit.paramfloatfg[0.3/1] Galaxy click fractionstat.fit.paramfloatl_F814WF814W Upper limit flagmeta.code.errorcharF814W[15.5/24]? HST/ACS F814W aperture magnitudemagphot.mag;em.opt.Ifloatnullablee_F814W[0.01/0.4]? F814W errormagstat.errorfloatnullableCl\New RBC flag classification (link to table d2)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/802/127/tablec1Andromeda project (AP) ancillary catalog (sources with f_cl+gal_>=0.1 not in AP catalogs)Reff[-0.04/5.2]? Effective radiusarcsecphys.angSizefloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_APID[EB]? Extended or Bulge source (1)stat.fit.paramcharAPID[1/54269] Andromeda Project Identification Numbermeta.id;meta.mainintprimaryRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.4/9.1] Aperture radiusarcsecstat.fit.paramfloatfcl+g[0/1] Unweighted Cluster+Galaxy click fraction (f_clst+gal_)stat.fit.paramfloatfg[0/1] Galaxy click fraction (f_gal_)stat.fit.paramfloatfclW[0/1] Weighted cluster click fraction (f_clst,W_)stat.fit.paramfloatPCID[1/1728]? ID number in Year-1 PHAT (J/ApJ/752/95)meta.id.crossintnullableAltIDAlternate Name if anymeta.idcharmcor[-0.8/-0]? Aperture correction (2)magphot.mag;arith.difffloatnullablel_F275W[>] F275W 3{sigma} Upper limit flagmeta.code.errorcharF275W[14/28]? HST/WFC3 F275W aperture magnitudemagphot.mag;em.UV.200-300nmfloatnullablee_F275W[0/0.7]? F275W errormagstat.errorfloatnullablel_F336W[>] F336W 3{sigma} Upper limit flagmeta.code.errorcharF336W[12.4/27.3]? HST/WFC3 F336W aperture magnitudemagphot.mag;em.opt.Ufloatnullablee_F336W[0/1]? F336W errormagstat.errorfloatnullablel_F475W[>] F475W 3{sigma} Upper limit flagmeta.code.errorcharF475W[11.2/26.6]? HST/ACS F475W aperture magnitudemagphot.mag;em.opt.Bfloatnullablee_F475W[0/0.4]? F475W errormagstat.errorfloatnullablel_F814W[>] F814W 3{sigma} Upper limit flagmeta.code.errorcharF814W[9.2/24.4]? HST/ACS F814W aperture magnitudemagphot.mag;em.opt.Ifloatnullablee_F814W[0/0.4]? F814W errormagstat.errorfloatnullablel_F110W[>] F110W 3{sigma} Upper limit flagmeta.code.errorcharF110W[12.2/24.4]? HST/WFC3 F110W aperture magnitudemagphot.mag;em.IR.Jfloatnullablee_F110W[0/0.4]? F110W errormagstat.errorfloatnullablel_F160W[>] F160W 3{sigma} Upper limit flagmeta.code.errorcharF160W[7.7/23.5]? HST/WFC3 F160W aperture magnitudemagphot.mag;em.IR.Hfloatnullablee_F160W[0/0.4]? F160W errormagstat.errorfloatnullableCl\New RBC flag classification (link to table d2)meta.ref.urlcharMcatSources within 2" from Caldwell et al. 2009, J/AJ/137/94 and RBC catalog (Galetti et al. 2012, V/143meta.ref.urlintnullableJ/ApJ/802/127/tablec2Synthetic cluster resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/3100] Synthetic cluster Identification Numbermeta.id;meta.mainintlogM[2/5] Logarithm of input Masslog(solMass)phys.massfloatlogAge[6.6/10.1] Logarithm of input Agelog(yr)time.agefloatZ[0/0.02] Input Metallicityphys.abund.ZfloatAv[0.1/3] Input V-band Attenuationmagphys.absorptionfloatReff[0.1/2.4] Input Effective radiusarcsecphys.angSizefloatF475W[18.5/23] Input F475Wmagphot.mag;meta.modelledfloatF814W[15.9/22.4] Input F814Wmagphot.mag;meta.modelledfloatF475W-3[18.5/27.3] Input F475W-3 (1)magphot.mag;meta.modelledfloatRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.4/6]? Aperture radiusarcsecstat.fit.paramfloatnullablefcl+g[0/1]? Unweighted Cluster+Galaxy click fractionstat.fit.paramfloatnullablefg[0/1]? Galaxy click fractionstat.fit.paramfloatnullablefclW[0/1]? Weighted cluster click fractionstat.fit.paramfloatnullableNMS[12/1566] Local Main Sequence star countmeta.numberintNRGB[47/1296] Local Red Giant Branch star countmeta.numberintDet?[TF] Detection flag: True or Falsemeta.codecharJ/ApJ/802/127/tabled2RBC (Revised Bologna Catalog) flag revisions and commentarySimbadNameSimbad column added by the CDSmeta.idcharRBCDisplay the RBC data (Galleti et al. 2012, V/143)meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAPID[55/17335] Andromeda Project Identification Number \linkRole{AP catalog data}meta.id;meta.mainintRBCIDRevised Bologna Catalog name (Galleti+, V/143)meta.id.crosscharCl1[1/6] New RBC classification flag (1)meta.code.classintCl0[1/6] Old RBC classification flag (1)meta.code.classintJ/ApJ/802/127/tablee1Archival (non-PHAT) AP cluster catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAAPID[1/2041] Archival Andromeda Project Identification Numbermeta.id;meta.mainintRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.6/15.8] Aperture radiusarcsecstat.fit.paramfloatfcl+g[0/1] Unweighted Cluster+Galaxy click fractionstat.fit.paramfloatfg[0/1] Galaxy click fractionstat.fit.paramfloatfclW[0/1]? Weighted Cluster click fraction f_clst,W_ (not in tablee2)stat.fit.paramfloatnullableAltIDAlternate names (none in tablee2)meta.idcharMcatSources within 2" from Caldwell et al. 2009, J/AJ/137/94 and RBC catalog (Galetti et al. 2012, V/143meta.ref.urlintnullableJ/ApJ/802/127/tablee2Archival (non-PHAT) AP background galaxy catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAAPID[1/2041] Archival Andromeda Project Identification Numbermeta.id;meta.mainintRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.6/15.8] Aperture radiusarcsecstat.fit.paramfloatfcl+g[0/1] Unweighted Cluster+Galaxy click fractionstat.fit.paramfloatfg[0/1] Galaxy click fractionstat.fit.paramfloatJ/ApJ/802/127/tablee3Archival (non-PHAT) AP ancillary catalog (sources with f_cl+gal_>=0.1 not in AP catalogs)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAAPID[1/2041] Archival Andromeda Project Identification Numbermeta.id;meta.mainintRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRap[0.6/15.8] Aperture radiusarcsecstat.fit.paramfloatfcl+g[0/1] Unweighted Cluster+Galaxy click fractionstat.fit.paramfloatfg[0/1] Galaxy click fractionstat.fit.paramfloatfclW[0/1]? Weighted Cluster click fraction f_clst,W_ (not in tablee2)stat.fit.paramfloatnullableAltIDAlternate names (none in tablee2)meta.idcharMcatSources within 2" from Caldwell et al. 2009, J/AJ/137/94 and RBC catalog (Galetti et al. 2012, V/143meta.ref.urlintnullable