J/A+A/464/953ivo://CDS.VizieR/J/A+A/464/953doi:10.26093/cds/vizier.34640953CDSGratton R.G.LucatelloS.Bragaglia A.Carretta E.Cassisi S.,Momany Y.Pancino E.Valenti E.Caloi V.Claudi R.D'Antona F.,Desidera S.Francois P.James G.Moehler S.Ortolani S.Pasquini L.,Piotto G.Recio-Blanco A.2007-06-17T08:34:25Z2007-06-17T08:32:05ZCDS support team

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

cds-question@unistra.frglobular-star-clusterspopulation-ii-starsline-intensitiesradial-velocityWe present an analysis of FLAMES-Giraffe spectra for several bright giants in NGC 6441, to investigate the presence and extent of the Na-O anticorrelation in this anomalous globular cluster. The field of NGC 6441 is very crowded, with severe contamination by foreground (mainly bulge) field stars. Appropriate membership criteria were devised to identify a group of 25 likely cluster members among the about 130 stars observed. Combined with the UVES data obtained with the same observations (Gratton et al., 2006, Cat. <J/A+A/455/271>), high dispersion abundance analyses are now available for a total of 30 stars in NGC 6441, 29 of them having data for both O and Na. The spectra were analyzed by a standard line analysis procedure; care was taken to minimize the impact of the differential interstellar reddening throughout the cluster, and to extract reliable information from crowded, and moderately high S/N (30-70), moderately high resolution (R~23000) spectra.2007A&A...464..953Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/464/953CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/455/271 : Abundances of red giants in NGC 6441 (Gratton+, 2006)J/A+A/464/927 : Abundances of red giants in NGC 6752 (Carreta+, 2007)J/A+A/464/939 : Abundances of red giants in NGC 6218 (Carreta+, 2007)J/A+A/464/967 : Abundances of red giants in NGC 6388 (Carreta+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/464/953https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/464/953http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/464/953https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/464/953https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/464/953http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/464/953GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/464/953/table2 (Photometry and spectroscopic data for stars observed with Giraffe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/464/953/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/464/953/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/464/953/table2?GETtext/xml+votable180.050000true267.3757-37.08860.0055555555555555566/28705https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/464/953?format=asciiOpticaldefaultJ/A+A/464/953/table3Equivalent Widths from Giraffe spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarSequential number of the starmeta.recordintIonElement and ionisation stage, e.g. 26.1 = FeIphys.atmol.element;phys.atmol.ionizationfloatLambdaWavelength of the line0.1nmem.wl;spect.linefloatEPPotential energyeVphys.energy;phys.atmol.levelfloatloggfOscillator strengthphys.atmol.oscStrengthfloatEW? Equivalent width (m{AA})0.1pmspect.line.eqWidthfloatnullableJ/A+A/464/953/table2Photometry and spectroscopic data for stars observed with GirafferecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarSequential number of the starmeta.recordintprimaryRAJ2000Right ascension (J2000) in decimal degreesdegpos.eq.ra;meta.mainDEJ2000Declination (J2000) in decimal degreesdegpos.eq.dec;meta.mainDistDistance from the cluster centerarcsecpos.angDistanceintVmagJohnson V magnitudemagphot.mag;em.opt.VfloatV-IcJohnson-Cousins V-Ic colour indexmagphot.color;em.opt.V;em.opt.IfloatV-K? Johnson V-K colour indexmagphot.color;em.opt.V;em.IR.KfloatnullableRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatS/NHR11? HR11 signal-to-noise ratiostat.snrintnullableS/NHR13? HR13 signal-to-noise ratiostat.snrintnullablee_EWrms uncertainty on equivalent width (m{AA})0.1pmstat.error;spect.line.eqWidthfloat[Fe/H]Metallicitylog(Sun)phys.abund.Zfloat