J/ApJS/235/23ivo://CDS.VizieR/J/ApJS/235/23doi:10.26093/cds/vizier.22350023CDSSabbi E.Calzetti D.Ubeda L.Adamo A.Cignoni M.Thilker D.,Aloisi A.Elmegreen B.G.Elmegreen D.M.Gouliermis D.A.Grebel E.K.,Messa M.Smith L.J.Tosi M.Dolphin A.Andrews J.E.Ashworth G.,Bright S.N.Brown T.M.Chandar R.Christian C.Clayton G.C.Cook D.O.,Dale D.A.De Mink S.E.Dobbs C.Evans A.S.Fumagalli M.,Gallagher J.S.Grasha K.Herrero A.Hunter D.A.Johnson K.E.Kahre L.,Kennicutt R.C.Kim H.Krumholz M.R.Lee J.C.Lennon D.Martin C.,Nair P.Nota A.Ostlin G.Pellerin A.Prieto J.Regan M.W.Ryon J.E.,Sacchi E.Schaerer D.Schiminovich D.Shabani F.Van Dyk S.D.,Walterbos R.Whitmore B.C.Wofford A.2019-01-09T14:19:12Z2018-12-05T16:30:09ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryhst-photometryultraviolet-photometryinfrared-photometryvisible-astronomyWide-band photometryThe Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in 5 bands from the near-UV to the I-band, combining new Wide Field Camera 3 observations with archival Advanced Camera for Surveys data. LEGUS was designed to investigate how star formation occurs and develops on both small and large scales, and how it relates to the galactic environments. In this paper we present the photometric catalogs for all the apparently single stars identified in the 50 LEGUS galaxies. We present optical and near-UV color-magnitude diagrams for all the galaxies. For each galaxy we derived the distance from the tip of the red giant branch. We then used the NUV color-magnitude diagrams to identify stars more massive than 14M_{sun}_, and compared their number with the number of massive stars expected from the GALEX FUV luminosity. Our analysis shows that the fraction of massive stars forming in star clusters and stellar associations is about constant with the star formation rate. This lack of a relation suggests that the timescale for evaporation of unbound structures is comparable or longer than 10Myr. At low star formation rates this translates to an excess of mass in clustered environments as compared to model predictions of cluster evolution, suggesting that a significant fraction of stars form in unbound systems.2018ApJS..235...23Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/235/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/ApJ/841/92 : Young massive star clusters in 2 LEGUS galaxies (Ryon+, 2017)J/ApJ/827/33 : PHAT. XVI. Star cluster masses and ages (Johnson+, 2016)J/AJ/152/50 : Cosmicflows-3 catalog (CF3) (Tully+, 2016)J/ApJ/812/147 : Star clusters in NGC 628 + 7793 (Krumholz+, 2015)J/A+A/529/A25 : Photom. of star clusters in 5 nearby gal. (Silva-Villa+, 2011)J/ApJS/192/6 : A GALEX UV imaging survey of nearby galaxies (Lee+, 2011)J/MNRAS/405/857 : Star clusters in NGC 3256 (Goddard+, 2010)J/ApJ/706/599 : H{alpha} and UV SFR in the local volume (Lee+, 2009)J/AJ/138/332 : LEDA CMD/tip of the red giant branch (Jacobs+, 2009)J/ApJS/178/247 : H{alpha} and [NII] survey in local 11 Mpc (Kennicutt+, 2008)J/ApJ/667/L145 : HST Photometry of M82 region B (Smith+, 2007)J/ApJ/658/1006 : Radial profiles for 161 face-on spirals (Munoz-Mateos+, 2007)J/ApJ/650/88 : NGC 4395 light curves. III. (Desroches+, 2006)J/AJ/123/3154 : RV light curves of variable stars in Leo A (Dolphin+, 2002)J/AJ/121/3048 : Multicolor photometry in NGC 1512 and NGC 5248 (Maoz+, 2001)J/AJ/114/2381 : UBVI photometry of NGC 7252 (Miller+, 1997)http://archive.stsci.edu/prepds/legus/dataproducts-public.html : LEGUS data(doi:10.17909/T9J01Z)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/235/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/235/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/235/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/235/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/235/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/235/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/235/23/table4 (Properties of the LEGUS galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/235/23/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/235/23/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/235/23/table4?GETtext/xml+votable180.050000true75.8329167-25.42388890.005555555555555556Cone search capability for table J/ApJS/235/23/catlegus (Five band stellar photometry catalog for only the sources with error_type=0 for all the LEGUS galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/235/23/catlegus?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/235/23/catlegus?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/235/23/catlegus?GETtext/xml+votable180.050000true201.69949-30.36872240.005555555555555556Cone search capability for table J/ApJS/235/23/table1 (Log of the observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/235/23/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/235/23/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/235/23/table1?GETtext/xml+votable180.050000true75.831667-25.4229440.0055555555555555566/2121 4181 5142 5174 5283 5978 6649 7769 7799 7956 10755 10905 10911 10935 10970 10976 10977 10979 11026 11027 11081 11084 11227 11432 11434 11639 11681 11944 16441 16605 18032 18398 19779 21027 25083 27512 27514 28167 28535 33193 33958 33984 33986 34343 34382 34401 34404 34471 43874 43925 457482.238682544986967e-19 7.886974166154988e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/235/23?format=asciiUVOpticalInfrareddefaultJ/ApJS/235/23/table4Properties of the LEGUS galaxiesSimbadNameSimbad column added by the CDSmeta.idcharE(B-V)[0.02/0.4] E(B-V) value (3)magphot.color.excessfloate_(m-M)0[0.2/0.6] (m-M)0 uncertaintymagstat.errorfloatLEDAmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameLEGUS galaxy namemeta.id;meta.maincharprimaryf_NameFlag(s) on Name (1)meta.codecharTType[0.1/11] RC3 morphological T-typesrc.morphfloatM*Stellar masssolMassphys.massdoubleMHI[10/1.9e+10] HI masssolMassphys.massdoubleSFR[0.004/5.1] UV SFR corrected for dust attenuation (2)solMass/yrphys.SFRfloatRfuv[0/173] GALEX FUV half-light radius R_1/2_arcsecphys.angSize;em.UV.100-200nmfloatE(B-V)0[0.01/0.08] The foreground E(B-V)magphot.color.excessfloatZ[0.0008/0.02] Metallicity (4)phys.abund.Zfloat(m-M)0[27.5/31.3] Distance modulus (see section 4)magphot.mag.distModfloatDist[3.3/18] DistanceMpcpos.distance;pos.heliocentricfloate_Dist[0.2/2] Dist uncertaintyMpcstat.errorfloatN14m[7/10148] Number of stars more massive that 14M_{sun}_ found in the field of each galaxy (see section 5)meta.numberintGalGalaxy name as used in filenames; column added by CDSmeta.id.parentcharNsNumber of sources for this galaxy (link to photometric catalog)meta.numberintnullableNobsNumber of observations for this galaxy (link to table 1)meta.numberintnullableNEDNED 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/ApJS/235/23/catlegusFive band stellar photometry catalog for only the sources with error_type=0 for all the LEGUS galaxiesOTb[0/2] Object type (OTYPE_F336W)meta.codeintindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy name; column added by CDSmeta.id.parentcharXimgObject position along x (X_IMAGE)pixpos;instr.detdoubleYimgObject position along y (Y_IMAGE)pixpos;instr.detdoubleF275W[15.8/34.4]? HST/WFC3 UVIS F275W DOLPHOT magnitude in VEGA system (MAGNI_F275W)magphot.mag;em.UV.200-300nmfloatnullableindexede_F275W[0.001/9.999]? Magnitude error (MAGER_F275W)magstat.errorfloatnullableChi2a[0/77.5] Reduced chi2 from PSF-fitting (CHISQ_F275W)stat.fit.chi2floatSharpa[-9.999/9.999] Object sharpness (0=perfect stellar fit) (SHARP_F275W)meta.code.qualfloatindexedCrowda[0/9.999] Object crowding (0=isolated star) (CROWD_F275W)magmeta.codefloatRounda[-1.2/9.999] Object roundness (ROUND_F275W)meta.codefloatOTa[0/2] Object type (OTYPE_F275W)meta.codeintindexedF336W[15.4/34.5]? HST/WFC3 UVIS F336W DOLPHOT magnitude in VEGA system (MAGNI_F336W)magphot.mag;em.opt.Ufloatnullableindexede_F336W[0.001/9.999]? Magnitude error (MAGER_F336W)magstat.errorfloatnullableChi2b[0/82] Reduced chi2 from PSF-fitting (CHISQ_F336W)stat.fit.chi2floatSharpb[-9.999/4.2] Object sharpness (0=perfect stellar fit) (SHARP_F336W)meta.code.qualfloatindexedCrowdb[0/5.7] Object crowding (0=isolated star) (CROWD_F336W)magmeta.codefloatRoundb[-0.5/9.999] Object roundness (ROUND_F336W)meta.codefloatF438W[16.7/36]? HST/WFC3 UVIS F438W DOLPHOT magnitude in VEGA system (MAGNI_F438W)magphot.mag;em.opt.Bfloatnullableindexede_F438W[0.001/9.999]? Magnitude error (MAGER_F438W)magstat.errorfloatnullableChi2c[0/75] Reduced chi2 from PSF-fitting (CHISQ_F438W)stat.fit.chi2floatSharpc[-9.999/2.8] Object sharpness (0=perfect stellar fit) (SHARP_F438W)meta.code.qualfloatindexedCrowdc[0/5.7] Object crowding (0=isolated star) (CROWD_F438W)magmeta.codefloatRoundc[-0.5/9.999] Object roundness (ROUND_F438W)meta.codefloatOTc[0/2] Object type (OTYPE_F438W)meta.codeintindexedF555W[17.7/30]? HST/WFC3 UVIS F555W DOLPHOT magnitude in VEGA system (MAGNI_F555W)magphot.mag;em.opt.Vfloatnullableindexede_F555W[0.001/9.999]? Magnitude error (MAGER_F555W)magstat.errorfloatnullableChi2d[0/80] Reduced chi2 from PSF-fitting (CHISQ_F555W)stat.fit.chi2floatSharpd[-9.999/4.8] Object sharpness (0=perfect stellar fit) (SHARP_F555W)meta.code.qualfloatindexedCrowdd[0/6.2] Object crowding (0=isolated star) (CROWD_F555W)magmeta.codefloatRoundd[-1.2/9.999] Object roundness (ROUND_F555W)meta.codefloatOTd[0/2] Object type (OTYPE_F555W)meta.codeintindexedF814W[16.3/30]? HST/WFC3 UVIS F814W DOLPHOT magnitude in VEGA system (MAGNI_F814W)magphot.mag;em.opt.Ifloatnullableindexede_F814W[0.001/9.999]? Magnitude error (MAGER_F814W)magstat.errorfloatnullableChi2e[0/80] Reduced chi2 from PSF-fitting (CHISQ_F814W)stat.fit.chi2floatSharpe[-9.999/28.2] Object sharpness (0=perfect stellar fit) (SHARP_F814W)meta.code.qualfloatindexedCrowde[0/5.8] Object crowding (0=isolated star) (CROWD_F814W)magmeta.codefloatRounde[-1.2/9.999] Object roundness (ROUND_F814W)meta.codefloatOTe[0/2] Object type (OTYPE_F814W)meta.codeintindexedFlags[1/55555] Five bands flag for LEGUS selections (GPQFs) (1)meta.code.errorintRAJ2000Right ascension of barycenter (J2000) (ALPHA_J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination of barycenter (J2000) (DELTA_J2000)degpos.eq.dec;meta.mainindexedLEGUSLEGUS unique identifier (+HH:MM:SS.SS-DD:MM:SS.S) (LEGUS_ID)meta.id;meta.maincharindexedJ/ApJS/235/23/table1Log of the observationsObsObservation datestime.epoch;obsnullableExp[90/1490] Exposure timestime.duration;obs.exposureintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameLEGUS galaxy namemeta.id;meta.maincharDatasetDataset namemeta.id;meta.datasetcharProp[9490/13364] HST Proposal IDmeta.id;obsintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainInstInstrument (WFC3 or ACS)meta.id;instrcharFiltFilter (F275W to F814W)meta.id;instr.filterchar