J/A+A/690/A164ivo://CDS.VizieR/J/A+A/690/A164doi:10.26093/cds/vizier.36900164CDSGatto M.Ripepi V.Bellazzini M.Tosi M.Cignoni M.Tortora C.,Marconi M.Dall'Ora M.Cioni M.-R.L.Musella I.Schipani P.Spavone M.2025-02-24T20:01:37Z2024-10-08T10:52:52ZCDS support team

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

cds-question@unistra.frmagellanic-cloudssurveysopen-star-clustersphotometryvisible-astronomyThe Magellanic Clouds (MCs) are the Milky Way's most massive dwarf satellites. As they also represent the closest pair of galaxies in an ongoing tidal interaction, while simultaneously infalling into the Milky Way halo, they provide a unique opportunity to study in detail an ongoing three-body encounter. We present the "YMCA (Yes, Magellanic Clouds Again) survey: probing the outer regions of the Magellanic system with VST" based on deep optical photometry carried out with the VLT Survey Telescope (VST). YMCA targeted 110 square degrees, in the g and i filters, in the periphery of both the MCs, including a long strip in between the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC). The photometry of YMCA is sufficiently deep (50% complete down to g=~23.5-24.0mag) to allow for a detailed analysis of main-sequence stars in regions of the MCs remained relatively unexplored at these faint magnitudes. The resulting colour-magnitude diagrams reveal that the outskirts of the MCs are predominantly characterized by intermediate-age and old stellar populations, with limited or negligible evidence of recent star formation. The analysis of the age distribution of star clusters (SCs) within the surveyed area, both already known and newly discovered candidates, hints at a close fly-by between the LMC and SMC that occurred =~2.5-3.0Gyr ago, in agreement with previous results. We also report the discovery of candidate SCs with ages within the so-called "age-gap", questioning its real existence.2024A&A...690A.164Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/690/A164CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/690/A164https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/690/A164http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/690/A164https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/690/A164https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/690/A164http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/690/A164GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/690/A164/clusters (Cluster properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A164/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A164/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A164/clusters?GETtext/xml+votable180.050000true11.85541537-68.919872020.005555555555555556Cone search capability for table J/A+A/690/A164/catalog (YMCA catalogue (table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A164/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A164/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A164/catalog?GETtext/xml+votable180.050000true88.9693827-63.5071260.0055555555555555564/2088 2345 5/8247 8251-8252 8267 8288-8289 8292 8327 8336 8356 8360 8362 9347-9348 9350 9353 9355-9356 9358-9359 9377 9379 9385 9387-9390 9394 9729-9730 6/32983 32987 32999 33002-33003 33012-33014 33016-33018 33065 33067 33080 33082-33083 33085-33087 33128 33130-33131 33160-33162 33164 33172-33173 33216 33301 33303 33322-33323 33338-33339 33348-33350 33352-33354 33432 33444-33446 33452 33797 33808-33809 34816 37051 37383 37387 37404 37406 37408-37409 37411 37419 37428 37430-37431 37482 37539 37545 37547 37564-37566 37568 37570-37571 37600-37602 38913 38915 38924-38926 38928-38930 38944-38946 45376-45377 45380-45381 45392-45393 45396-45397 46080https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/690/A164?format=asciiOpticaldefaultJ/A+A/690/A164/clustersCluster propertiesGParameter defined in Eq.2 of the paperstat.fit.paramfloatn0Central number surface densityarcmin**-2src.densityinte_n0Uncertainty on n0arcmin**-2stat.errorintrcCore radius of the clusterarcminphys.angSize;srcfloate_rcUncertainty on the core radiusarcminstat.errorfloatrcpcCore radius of the cluster given in parsecpcphys.size.radiusfloate_rcpcUncertainty on the core radius given in parsecpcstat.errorfloatTileTile where the SC residesobs.fieldcharFlag[ABC] Flag assessing the reliability of the SC (1)meta.code.errorcharSimbadAdditional IDs as reported in SIMBADmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDCluster name, YMCA-NNNNmeta.id;meta.maincharRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainRCluster radiusarcminphys.angSizefloatlogtCluster Agelog(yr)time.agefloatNstarsNumber of stars within the cluster radiusmeta.numberintSimbadNameSimbad column added by the CDSmeta.idcharnullableJ/A+A/690/A164/catalogYMCA catalogue (table 2)imagCalibrated magnitude in the i-filtermagphot.mag;em.opt.Idoublee_imagUncertainty of the magnitude in the i-filtermagstat.error;phot.magdoublechiCHI output parameter of DAOPHOTIV/ALLSTARstat.fit.chi2floatsharpSHARP output parameter of DAOPHOTIV/ALLSTARstat.fit.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[] Right ascension (J2000.0)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainindexedgmagCalibrated magnitude in the g-filtermagphot.mag;em.opt.Bdoublee_gmagUncertainty of the magnitude in the g-filtermagstat.error;phot.magdouble