J/MNRAS/449/639ivo://CDS.VizieR/J/MNRAS/449/639doi:10.26093/cds/vizier.74490639CDSRubele S.Girardi L.Kerber L.Cioni M.-R.L.Piatti A.E.Zaggia S.,Bekki K.Bressan A.Clementini G.De Grijs R.Emerson J.P.,Groenewegen M.A.T.Ivanov V.D.Marconi M.Marigo P.Moretti M.-I.,Ripepi V.Subramanian S.Tatton B.L.Van Loon J.T.2024-08-14T20:21:29Z2016-01-06T15:15:07ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsstellar-distanceextinctionWe analyse deep images from the VISTA survey of the Magellanic Clouds in the YJKs filters, covering 14deg^2^ (10 tiles), split into 120 subregions, and comprising the main body and Wing of the Small Magellanic Cloud (SMC). We apply a colour-magnitude diagram reconstruction method that returns their best-fitting star formation rate SFR(t), age-metallicity relation (AMR), distance and mean reddening, together with 68 percent confidence intervals. The distance data can be approximated by a plane tilted in the East-West direction with a mean inclination of 39{deg}, although deviations of up to +/-3kpc suggest a distorted and warped disc. After assigning to every observed star a probability of belonging to a given age-metallicity interval, we build high-resolution population maps. These dramatically reveal the flocculent nature of the young star-forming regions and the nearly smooth features traced by older stellar generations. They document the formation of the SMC Wing at ages <0.2Gyr and the peak of star formation in the SMC Bar at ~40Myr. We clearly detect periods of enhanced star formation at 1.5 and 5Gyr. The former is possibly related to a new feature found in the AMR, which suggests ingestion of metal-poor gas at ages slightly larger than 1Gyr. The latter constitutes a major period of stellar mass formation. We confirm that the SFR(t) was moderately low at even older ages.2015MNRAS.449..639Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/639CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/424/1807 : VISTA Magellanic Cloud Survey. V. Cepheids (Ripepi+, 2012)J/A+A/549/A29 : Quasars behind the Magellanic system (Cioni+, 2013)J/A+A/554/A33 : VMC Survey. VII. 30 Doradus reddening map (Tatton+, 2013)J/MNRAS/437/2307 : LMC anomalous Cepheid Ks light curves (Ripepi+, 2014)J/MNRAS/437/2702 : MC Cepheids, RR Lyrae stars and binaries (Moretti+, 2014)J/MNRAS/446/3034 : LMC Type II Cepheids J and Ks light curves (Ripepi+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/449/639https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/639http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/639https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/639https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/639http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/639GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/449/639/table3 (Mean distances and extinctions for each subregion)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/449/639/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/449/639/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/449/639/table3?GETtext/xml+votable180.050000true13.18529695-74.594494940.0055555555555555565/8323-8324 8326 8329 8331 6/32955 33287 33302-33303 33308-33310 33328-33329 33331-33332https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/449/639?format=asciidefaultJ/MNRAS/449/639/table3Mean distances and extinctions for each subregionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTileSMC tileobs.fieldcharGSubregion, within the tilemeta.idintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainmu0Dereddened distance modulusmagphot.mag.distModfloate_mu0Error on mu0 (lower value)magstat.errorfloatE_mu0Error on mu0 (upper value)magstat.error;stat.maxfloatdDistancekpcpos.distancefloate_dError on d (lower value)kpcstat.errorfloatE_dError on d (upper value)kpcstat.error;stat.maxfloatAVExtinction in V bandmagphys.absorption;em.opt.Vfloate_AVError on AV (lower value)magstat.errorfloatE_AVError on AV (upper value)magstat.error;stat.maxfloat