J/A+A/581/A72ivo://CDS.VizieR/J/A+A/581/A72doi:10.26093/cds/vizier.35810072CDSFrank M.J.Koch A.Feltzing S.Kacharov N.Wilkinson M.I.Irwin M.2015-09-07T08:31:53Z2015-09-07T08:30:26ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvisible-astronomymedium-band-photometryNGC 2419 is a peculiar Galactic globular cluster offset from the others in the size-luminosity diagram, and showing several chemical abundance anomalies. Here, we present Stromgren uvby photometry of the cluster. Using the gravity- and metallicity-sensitive c1 and m1 indices, we identify a sample of likely cluster members extending well beyond the formal tidal radius. The estimated contamination by cluster non-members is only one per cent, making our catalogue ideally suited for spectroscopic follow-up. We derive photometric [Fe/H] of red giants, and depending on which metallicity calibration from the literature we use, we find reasonable to excellent agreement with spectroscopic [Fe/H], both for the cluster mean metallicity and for individual stars. We demonstrate explicitly that the photometric uncertainties are not Gaussian and this must be accounted for in any analysis of the metallicity distribution function.2015A&A...581A..72Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/581/A72CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/PASP/117/37 : BVRI photometry in NGC 2419, Pal 4, and Pal 14 (Saha+, 2005)J/AJ/136/2259 : HST photometry of stars in NGC 2419 (Sandquist+, 2008)J/ApJ/681/311 : Blue stragglers in NGC 2419 (Dalessandro+, 2008)J/AJ/141/81 : NGC 2419 variable star population (Di Criscienzo+, 2011)J/ApJ/738/186 : HST and DEIMOS measurements of NGC 2419 stars (Ibata+, 2011)J/ApJ/740/60 : NGC2419 & NGC7099 RGB stars equivalent widths (Cohen+, 2011)J/ApJ/760/86 : Equivalent widths for 13 NGC 2419 RGB stars (Cohen+, 2012)J/MNRAS/431/1995 : Deep uVI photometry of NGC 2419 (Beccari+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/581/A72https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/581/A72http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/581/A72https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/581/A72https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/581/A72http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/581/A72GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/581/A72/catalog (Photometry and stellar classification)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/581/A72/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/581/A72/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/581/A72/catalog?GETtext/xml+votable180.050000true114.771112538.620852780.0055555555555555566/6389 6391https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/581/A72?format=asciiOpticaldefaultJ/A+A/581/A72/catalogPhotometry and stellar classificationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainChipWFC chip of source detectionmeta.id;instrintXChip x coordinate of detectionpos.cartesian.xfloatYChip x coordinate of detectionpos.cartesian.xfloatbmagApparent magnitude in Stroemgren b filtermagphot.mag;em.opt.Bfloate_bmagStroemgren b magnitude daophot uncertaintymagstat.error;phot.mag;em.opt.BfloatbchiStroemgren b magnitude daophot chistat.fit.chi2floatbsharpStroemgren b magnitude daophot sharpnessstat.fit.paramfloatumagApparent magnitude in Stroemgren u filtermagphot.mag;em.opt.Ufloate_umagStroemgren u magnitude daophot uncertaintymagstat.error;phot.mag;em.opt.UfloatuchiStroemgren u magnitude daophot chistat.fit.chi2floatusharpStroemgren u magnitude daophot sharpnessstat.fit.paramfloatvmagApparent magnitude in Stroemgren v filtermagphot.mag;em.opt.Bfloate_vmagStroemgren v magnitude daophot uncertaintymagstat.error;phot.mag;em.opt.BfloatvchiStroemgren v magnitude daophot chistat.fit.chi2floatvsharpStroemgren v magnitude daophot sharpnessstat.fit.paramfloatymagApparent magnitude in Stroemgren y filtermagphot.mag;em.opt.Vfloate_ymagStroemgren y magnitude daophot uncertaintymagstat.error;phot.mag;em.opt.VfloatychiStroemgren y magnitude daophot chistat.fit.chi2floatysharpStroemgren y magnitude daophot sharpnessstat.fit.paramfloatHBFlag[0,1] 1 if candidate horizontal branch star (1)meta.codeintRGBFlag[0,1] 1 if candidate red giant branch star (1)meta.codeintVariFlag[0,1] 1 if candidate variable star (1)meta.codeintRGBFlag2[0,1] 1 if RGBFlag and passing metallicity selection (2)meta.codeintRGBFlag3[0,1] 1 if RGBFlag2 and passing ridgeline selection (3)meta.codeint