J/AJ/142/61ivo://CDS.VizieR/J/AJ/142/61doi:10.26093/cds/vizier.51420061CDSCarrera R.Gallart C.Aparicio A.Hardy E.2017-11-29T11:48:58Z2012-12-11T12:27:41ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsgiant-starsphotometryspectroscopyThe outer disk of the Large Magellanic Cloud (LMC) is studied in order to unveil clues about its formation and evolution. Complementing our previous studies in innermost fields (3kpc<~R<~7kpc), we obtained deep color-magnitude diagrams in six fields with galactocentric distances from 5.2kpc to 9.2kpc and different azimuths. The comparison with isochrones shows that while the oldest population is approximately coeval in all fields, the age of the youngest populations increases with increasing radius. This agrees with the results obtained in the innermost fields. Low-resolution spectroscopy in the infrared CaII triplet region has been obtained for about 150 stars near the tip of the red giant branch in the same fields. Radial velocities and stellar metallicities have been obtained from these spectra. The metallicity distribution of each field has been analyzed together with those previously studied.2011AJ....142...61Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/61CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/480/379 : Abundances of 59 red giants in LMC (Pompeia+, 2008)J/AJ/139/878 : RGB stars in 8 LMC clusters (Sharma+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/61https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/61http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/61https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/142/61https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/142/61http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/142/61GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/142/61/table2 (LMC RGB stars observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/142/61/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/61/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/61/table2?GETtext/xml+votable180.050000true65.7585-70.98083330.0055555555555555565/8267 8288 6/33827 33828 33830 33831 37421 37425https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/142/61?format=asciiOpticaldefaultJ/AJ/142/61/table2LMC RGB stars observedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainW(CaT)The Ca II triplet lines index {Sigma}Ca (1)0.1nmspect.line.eqWidthfloate_W(CaT)Uncertainty in SigmaCa0.1nmstat.errorfloatBVmagThe B or V band magnitude (2)magphot.mag;em.optfloatImagThe I band magnitudemagphot.mag;em.opt.IfloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVUncertainty in RVkm/sstat.errorfloatSimbadNameSimbad column added by the CDSmeta.idcharComCommentsmeta.notechar