J/A+A/517/A50ivo://CDS.VizieR/J/A+A/517/A50doi:10.26093/cds/vizier.35170050CDSGlatt K.Grebel E.K.Koch A.2017-12-22T05:32:26Z2010-08-05T19:02:03ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsstellar-associationsapparent-magnitudeIn this paper we discuss the age and spatial distribution of young (age<1Gyr) SMC and LMC clusters using data from the Magellanic Cloud Photometric Surveys. Luminosities are calculated for all age-dated clusters. Ages of 324 and 1193 populous star clusters in the Small and the Large Magellanic Cloud have been determined fitting Padova and Geneva isochrone models to their resolved color-magnitude diagrams. The clusters cover an age range between 10Myr and 1Gyr in each galaxy. For the SMC a constant distance modulus of (m-M)_0_=18.90 and a metallicity of Z=0.004 were adopted. For the LMC, we used a constant distance modulus of (m-M)_0_=18.50 and a metallicity of Z=0.008. For both galaxies, we used a variable color excess to derive the cluster ages. We find two periods of enhanced cluster formation in both galaxies at 160Myr and 630Myr (SMC) and at 125Myr and 800Myr (LMC). We present the spatially resolved recent star formation history of both Clouds based on young star clusters. The first peak may have been triggered by a close encounter between the SMC and the LMC. In both galaxies the youngest clusters reside in the supergiant shells, giant shells, the inter-shell regions, and toward regions with a high H\alpha content, suggesting that their formation is related to expansion and shell-shell interaction. Most of the clusters are older than the dynamical age of the supergiant shells. No evidence for cluster dissolution was found. Computed V band luminosities show a trend for fainter magnitudes with increasing age as well as a trend for brighter magnitudes with increasing apparent cluster radii.2010A&A...517A..50Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/517/A50CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/110/533 : Clusters and field stars in LMC. I. (Linde+, 1995)J/AJ/116/723 : LMC star clusters ages and metallicity (Bica+ 1998)J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)J/MNRAS/386/1380 : BVRI photometry of LMC star clusters (Kumar+, 2008)J/A+A/501/585 : CT1 photometry in five LMC star clusters (Piatti+, 2009)J/A+A/503/469 : Compact clusters in LMC catalogue of stars (Liu+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/517/A50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/517/A50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/517/A50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/517/A50https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/517/A50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/517/A50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/517/A50/clusters (Ages, luminosities, reddenings, radii, cross-identifications of LMC and SMC clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/517/A50/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/517/A50/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/517/A50/clusters?GETtext/xml+votable180.050000true69.4625-69.029170.0055555555555555564/2068 5/8263 8268-8269 8276-8278 8280-8281 8323 8326 8329 6/33046-33047 33049 33051 33061-33063 33081 33084-33085 33116-33118 33128-33129 33132-33133 33136-33138 33287 33298-33299 33313 33315 33328-33330 33336 33792-33794 37418 37504 37506 37512 37514 37538 37544 37546https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/517/A50?format=asciiOpticaldefaultJ/A+A/517/A50/clustersAges, luminosities, reddenings, radii, cross-identifications of LMC and SMC clustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameIdentification number (LMCNNNN or SMCNNNN)meta.id;meta.maincharn_Name[*] Note on Name (1)meta.notecharE(B-V)Foreground reddeningmagphot.color.excessfloatRRadius (2)arcminphys.angSizefloatl_AgeLimit flag on log(Age)meta.code.error;time.agecharAgeCluster age in logarithmic scalelog(yr)instr.scalefloatq_Age? Class for Age uncertainties (3)meta.code.qual;time.ageintnullableAge2? Second value of cluster age in logarithmic scalelog(yr)time.agefloatnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagV-band magnitudemagphot.mag;em.opt.Vfloate_VmagUncertainties of V-band magnitudemagstat.error;phot.mag;em.opt.VfloatCross-IDCross-Identification(s)meta.idchar