J/AJ/119/1225ivo://CDS.VizieR/J/AJ/119/1225doi:10.26093/cds/vizier.51191225CDSHughes J. Wallerstein G.2023-04-06T16:50:36Z2000-05-07T09:35:36ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvisible-astronomymedium-band-photometryWe have observed (with vby filters) a field north of the core of the most massive globular cluster in our galaxy, {omega} Centauri. We have found a correlation of age and metallicity in a region that avoids the dense core and the inhomogeneous foreground dust emission shown by IRAS. Our observations show that the comparatively metal-rich stars (as defined by the b-y and m_1_ colors) are younger than the metal-poor stars by at least 3 Gyr.2000AJ....119.1225Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/119/1225CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/108/1350 : Omega Cen FUV photometry (Whitney+, 1994)J/MNRAS/250/314 : CCD photometry of omega Cen (Noble+ 1991)J/A+AS/115/297 : BVRI photometry of Central Field of Omega Cen (Lynga+, 1996)J/PASP/106/828 : BVRI photometry of Omega Cen (Walker 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/119/1225https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/119/1225http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/119/1225https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/119/1225https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/119/1225http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/119/1225GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/119/1225/table2Objects in {omega} CentauriNameObject namecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intb-yThe Stromgren b-y colormagfloate_b-yUncertainty in b-ymagfloatVmagThe V band magnitude (1)magfloate_VmagUncertainty in Vmagmagfloatv-bThe Stromgren v-b colormagfloate_v-bUncertainty in v-bmagfloatm1Metallicity index ((v-b) - (b-y))magfloatVMagThe absolute V band magnitudemagfloatJ/AJ/119/1225/table3Objects in the off-cluster fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intNameObject namecharb-yThe Stromgren b-y colormagfloate_b-yUncertainty in b-ymagfloatVmagThe V band magnitude (1)magfloate_VmagUncertainty in Vmagmagfloatv-bThe Stromgren v-b colormagfloate_v-bUncertainty in v-bmagfloatm1Metallicity index ((v-b) - (b-y))magfloatJ/AJ/119/1225/table4Objects in NGC 6397recnoRecord number assigned by the VizieR team. Should Not be used for identification.intN6397Object name (in NGC 6397)charb-yThe Stromgren b-y colormagfloate_b-yUncertainty in b-ymagfloatVmagThe V band magnitude (1)magfloate_VmagUncertainty in Vmagmagfloatv-bThe Stromgren v-b colormagfloate_v-bUncertainty in v-bmagfloatm1Metallicity index ((v-b) - (b-y))magfloatVMagThe absolute V band magnitudemagfloat