J/MNRAS/450/2122ivo://CDS.VizieR/J/MNRAS/450/2122doi:10.26093/cds/vizier.74502122CDSPalma T.Claria J.J.Geisler D.Gramajo L.V.Ahumada A.V.2024-08-14T20:21:44Z2019-12-10T07:26:17ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsopen-star-clustersvisible-astronomybroad-band-photometryWe present Washington system colour-magnitude diagrams (CMDs) for 17 practically unstudied star clusters located in the bar as well as in the inner disc and outer regions of the Large Magellanic Cloud (LMC). Cluster sizes were estimated from star counts distributed throughout the entire observed fields. Based on the best fits of theoretical isochrones to the cleaned (C-T_1_, T_1_) CMDs, as well as on the {delta}T_1_ parameter and the standard giant branch method, we derive ages and metallicities for the cluster sample. Four objects are found to be intermediate-age clusters (1.8-2.5 Gyr), with [Fe/H] ranging from -0.66 to -0.84. With the exception of SL 263, a very young cluster (~16 Myr), the remaining 12 objects are aged between 0.32 and 0.89 Gyr, with their [Fe/H] values ranging from -0.19 to -0.50. We combined our results with those for other 231 clusters studied in a similar way using the Washington system. The resulting age-metallicity relationship shows a significant dispersion in metallicities, whatever age is considered. Although there seems to exist a clear tendency for the younger clusters to be more metal rich than the intermediate ones, we believe that none of the chemical evolution models currently available in the literature reasonably well represents the recent chemical enrichment processes in the LMC clusters. The present sample of 17 clusters is part of our ongoing project of generating a data base of LMC clusters homogeneously studied using the Washington photometric system and applying the same analysis procedure.2015MNRAS.450.2122Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/450/2122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/183 : The Cluster System of the LMC (Kontizas+ 1990)J/AcA/48/175 : OGLE SMC clusters (Pietrzynski+ 1998)J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)J/AJ/117/238 : LMC extended catalog (Bica+, 1999)J/MNRAS/389/678 : Cat. of extended objects in Magellanic Clouds (Bica+, 2008)J/A+A/501/585 : CT1 photometry in five LMC star clusters (Piatti+, 2009)J/A+A/555/A131 : Fundamental parameters of star clusters in the LMCJ/A+A/586/A41 : LMC star clusters catalog (Palma+, 2016)J/A+A/606/A21 : LMC bar star clusters (Piatti, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/450/2122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/450/2122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/450/2122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/450/2122https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/450/2122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/450/2122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/450/2122/table1 (Observed star clusters in the LMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/450/2122/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/450/2122/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/450/2122/table1?GETtext/xml+votable180.050000true72.3625-72.781670.0055555555555555566/33030 33048 33060 33088-33089 33091 33124-331252.9196443747461696e-19 3.2860540898823595e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/450/2122?format=asciiOpticaldefaultJ/MNRAS/450/2122/table1Observed star clusters in the LMCSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterStar 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.mainGLON[277.278/286.813] Galactic longitudedegpos.galactic.lonGLAT[-34.854/-30.189] Galactic latitudedegpos.galactic.latfloatr[0.19/1.15] Cluster radius from Bica et al. (2008, J/MNRAS/389/678)arcminphys.angSizefloatRad1[0.32/1.17] Cluster radius derived in the current study in arcminarcminphys.angSizefloatRad2[4.6/17] Cluster radius derived in the current study in parsecspcphys.size.radiusfloatTableTable number for the corresponding stars data; column added by CDSmeta.idcharJ/MNRAS/450/2122/table21CT_1_ data of stars in the field of SL 48recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table22CT_1_ data of stars in the field of KMHK 575recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table23CT_1_ data of stars in the field of SL 263recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table24CT_1_ data of stars in the field of BSDL 794recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table25CT_1_ data of stars in the field of SL 490recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table26CT_1_ data of stars in the field of LW 231recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table27CT_1_ data of stars in the field of IC 2140recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table28CT_1_ data of stars in the field of HS 409Seq[2/105856] Sequential number within the fieldmeta.recordintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloatJ/MNRAS/450/2122/table29CT_1_ data of stars in the field of BSDL 3060recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/105856] Sequential number within the fieldmeta.recordintXpos[-0.474/2050.77] X position (1)pixpos.cartesian.x;instr.detdoubleYpos[-0.96/4098.5] Y position (1)pixpos.cartesian.y;instr.detdoubleT1mag[14.543/24.652] T_1_ magnitudemagphot.mag;em.opt.Rfloate_T1mag[0.001/0.543] rms uncertainty on T1magmagstat.error;phot.magfloatC-T1[-5.818/7.271] C-T_1_ colour indexmagphot.color;em.opt.U;em.opt.Rfloate_C-T1[0.003/0.754] rms uncertainty on C-T1magstat.errorfloat