J/ApJ/657/241ivo://CDS.VizieR/J/ApJ/657/241doi:10.26093/cds/vizier.16570241CDSKoch A.Wilkinson M.I.Kleyna J.T.Gilmore G.F.Grebel E.K.,MacKey A.D.Evans N.W.Wyse R.F.G.2009-06-01T17:12:53Z2009-06-01T17:07:12ZCDS support team

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

cds-question@unistra.frgalaxiesgiant-starsphotometryradial-velocitymetallicityWe present low-resolution spectroscopy of 120 red giants in the Galactic satellite dwarf spheroidal (dSph) Leo I, obtained with GeminiN GMOS and Keck DEIMOS. We find stars with velocities consistent with membership of Leo I out to 1.3 King tidal radii. By measuring accurate radial velocities with a median measurement error of 4.6km/s, we find a mean systemic velocity of 284.2km/s with a global velocity dispersion of 9.9km/s. The dispersion profile is consistent with being flat out to the last data point.2007ApJ...657..241Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/657/241CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/657/241https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/657/241http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/657/241https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/657/241https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/657/241http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/657/241GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/657/241/table2 (Characteristics of the target stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/657/241/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/657/241/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/657/241/table2?GETtext/xml+votable180.050000true152.118333312.31424720.0055555555555555566/27574 27580https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/657/241?format=asciiOpticaldefaultJ/ApJ/657/241/table2Characteristics of the target starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSamp[GD] GMOS or DEIMOS sample identificationmeta.id;instrchar[KWK2007]Identification numbermeta.id;meta.mainintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainImagThe I band magnitudemagphot.mag;em.opt.IfloatV-IThe (V-I) color indexmagphot.color;em.opt.V;em.opt.IfloatRadDistance from LeoI centerarcminpos.angDistancefloatHRVHeliocentric radial velocity (2)km/sspect.dopplerVeloc;pos.heliocentricfloate_HRVError in HRVkm/sstat.errorfloatRTonry-Davis R-based error of HRVstat.fit.chi2floatS/NSignal-to-noisestat.snrintFe/H? Metallicity on Carretta & Gratton scale (3)instr.scalefloatnullablee_Fe/H? Error in Fe/Hstat.error;phys.abund.Fefloatnullable