J/A+A/555/A131ivo://CDS.VizieR/J/A+A/555/A131doi:10.26093/cds/vizier.35550131CDSPalma T.Claria J.J.Geisler D.Piatti A.E.Ahumada A.V.2017-11-28T13:21:45Z2013-07-12T13:11:16ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsopen-star-clustersvisible-astronomybroad-band-photometryTo enlarge our growing sample of well-studied star clusters in the Large Magellanic Cloud (LMC), we present CCD Washington CT1 photometry to T1~23 in the fields of twenty-three mostly unstudied clusters located in the inner disc and outer regions of the LMC. We estimated cluster radii from star counts. Using the cluster Washington (T1,C-T1) colour-magnitude diagrams, statistically cleaned from field star contamination, we derived cluster ages and metallicities from a comparison with theoretical isochrones of the Padova group. Whenever possible, we also derived ages using delta T1 - the magnitude difference between the red giant clump and the main sequence turn off - and estimated metallicities from the standard giant branch procedure. We enlarged our sample by adding clusters with published ages and metallicities determined on a similar scale by applying the same methods. We examined relationships between their positions in the LMC, ages and metallicities. We find that the two methods for age and metallicity determination agree well with each other. Fourteen clusters are found to be intermediate-age clusters (1-2Gyr), with [Fe/H] values ranging from -0.4 to -0.7. The remaining nine clusters turn out to be younger than 1Gyr, with metallicities between 0.0 and -0.4. Our 23 clusters represent an increase of ~30% in the current total amount number of well-studied LMC clusters using Washington photometry. In agreement with previous studies, we find no evidence for a metallicity gradient. We also find that the younger clusters were formed closer to the LMC centre than the older ones.2013A&A...555A.131Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/555/A131CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/501/585 : CT1 photometry in five LMC star clusters (Piatti+, 2009)J/MNRAS/389/678 : Cat. of extended objects in Magellanic Clouds (Bica+, 2008)J/AJ/117/238 : LMC extended catalog (Bica+, 1999)J/AJ/116/723 : LMC star clusters ages and metallicity (Bica+ 1998)J/A+AS/110/533 : Clusters and field stars in LMC. I. (Linde+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/555/A131https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/555/A131http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/555/A131https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/555/A131https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/555/A131http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/555/A131GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/555/A131/tab3_20 (CT1 data of stars in the field of KMHK1702)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_20?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_20?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_20?GETtext/xml+votable180.050000true93.5120658-72.51849250.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_21 (CT1 data of stars in the field of SL870)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_21?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_21?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_21?GETtext/xml+votable180.050000true94.0073711-72.67414670.005555555555555556Cone search capability for table J/A+A/555/A131/table1 (Observed star clusters in the LMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/table1?GETtext/xml+votable180.050000true71.60417-72.568330.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_2 (CT1 data of stars in the field of KMHK123)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_2?GETtext/xml+votable180.050000true72.9610956-72.76238030.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_4 (CT1 data of stars in the field of LW69)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_4?GETtext/xml+votable180.050000true72.1385467-72.26178810.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_5 (CT1 data of stars in the field of KMHK151)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_5?GETtext/xml+votable180.050000true72.2210278-72.92087970.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_6 (CT1 data of stars in the field of SL54)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_6?GETtext/xml+votable180.050000true72.7474972-72.60738810.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_8 (CT1 data of stars in the field of SL72)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_8?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_8?GETtext/xml+votable180.050000true73.9439386-72.26100360.005555555555555556Cone search capability for table J/A+A/555/A131/tab3_9 (CT1 data of stars in the field of BSDL594)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A131/tab3_9?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A131/tab3_9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A131/tab3_9?GETtext/xml+votable180.050000true76.4673758-67.06376720.0055555555555555565/9354 6/33048 33060-33061 33072 33088 33124-331252.9196443747461696e-19 3.2860540898823595e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/555/A131?format=asciiOpticaldefaultJ/A+A/555/A131/tab3_20CT1 data of stars in the field of KMHK1702recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.40'') (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.40'') (declination part)degpos.eq.dec;meta.mainJ/A+A/555/A131/tab3_21CT1 data of stars in the field of SL870recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.36'') (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.36'') (declination part)degpos.eq.dec;meta.mainJ/A+A/555/A131/table1Observed star clusters in the LMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar cluster name (1)meta.id;meta.maincharONameOther designation(s)meta.idcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatrCluster radius from Bica et al. (2008, Cat. J/MNRAS/389/678)arcminphys.angSizefloatRadCluster radius derived in the current study in pixelspixphys.size.radiusintRad2Cluster radius derived in the current study in parsecspcphys.size.radiusfloatTabTable number for the corresponding stars data; column added by CDSmeta.idcharSimbadNameSimbad column added by the CDSmeta.idcharJ/A+A/555/A131/tab3_1CT1 data of stars in the field of SL33/SL41recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_2CT1 data of stars in the field of KMHK123recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.26'') (right ascension part)degpos.eq.ra;meta.mainindexed_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.26'') (declination part)degpos.eq.dec;meta.mainindexedJ/A+A/555/A131/tab3_3CT1 data of stars in the field of KMHK128recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_4CT1 data of stars in the field of LW69recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with 2MASS-PSC (II/246) ({sigma}=0.37'') (right ascension part)degpos.eq.ra;meta.mainindexed_DEPosition computed from a comparison with 2MASS-PSC (II/246) ({sigma}=0.37'') (declination part)degpos.eq.dec;meta.mainindexedJ/A+A/555/A131/tab3_5CT1 data of stars in the field of KMHK151recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.39'') (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.39'') (declination part)degpos.eq.dec;meta.mainJ/A+A/555/A131/tab3_6CT1 data of stars in the field of SL54recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.47'') (right ascension part)degpos.eq.ra;meta.mainindexed_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.47'') (declination part)degpos.eq.dec;meta.mainindexedJ/A+A/555/A131/tab3_7CT1 data of stars in the field of SL73T1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleJ/A+A/555/A131/tab3_8CT1 data of stars in the field of SL72recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.27'') (right ascension part)degpos.eq.ra;meta.mainindexed_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.27'') (declination part)degpos.eq.dec;meta.mainindexedJ/A+A/555/A131/tab3_9CT1 data of stars in the field of BSDL594e_T1magrms uncertainty on T1magmagstat.error;phot.magfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.RfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.35'') (right ascension part)degpos.eq.ra;meta.mainindexed_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.35'') (declination part)degpos.eq.dec;meta.mainindexedJ/A+A/555/A131/tab3_10CT1 data of stars in the field of BSDL654/665recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_11CT1 data of stars in the field of BSDL675recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_12CT1 data of stars in the field of HS130recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_13CT1 data of stars in the field of BSDL761recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_14CT1 data of stars in the field of BSDL779recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_15CT1 data of stars in the field of HS156recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_16CT1 data of stars in the field of HS178recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_17CT1 data of stars in the field of LW211recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_18CT1 data of stars in the field of C11e_T1magrms uncertainty on T1magmagstat.error;phot.magfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintXposX position (1)pixpos.cartesian.x;instr.detdoubleYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.RfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloatJ/A+A/555/A131/tab3_19CT1 data of stars in the field of BSDL3158XposX position (1)pixpos.cartesian.x;instr.detdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number within the fieldmeta.recordintYposY position (1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.error;phot.magfloatC-T1C-T1 colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1rms uncertainty on C-T1magstat.errorfloat