J/A+A/392/491ivo://CDS.VizieR/J/A+A/392/491doi:10.26093/cds/vizier.33920491CDSAndrievsky S.M.Kovtyukh V.V.Luck R.E.Lepine J.R.D.Maciel W.J.,Beletsky Yu.V.2018-01-10T11:47:27Z2002-10-06T17:50:16ZCDS support team

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

cds-question@unistra.frvariable-starssupergiant-starschemical-abundancesAs a continuation of our previous work, which concerned the radial abundance distribution in the galactic disc over the distances 4-10kpc this paper presents the first results on the metallicity in the outer disc (R_G_>10kpc). Based on high-resolution spectra obtained for 19 distant Cepheids we sampled galactocentric distances from 10 to 12 kpc. Combined with the results of our previous work on the inner and middle parts of the galactic disc, the present data enable one to study the structure of the radial abundance distribution over a large baseline. In particular, we find indications of a discontinuity in the radial abundance distribution for iron as well as a number of the other elements. The discontinuity is seen at a galactocentric distance R_G_=10kpc. This finding supports the results reported earlier by Twarog et al. (1997AJ....114.2556T).2002A&A...392..491Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/392/491CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/381/32 : Galactic Cepheid abundances (Andrievsky+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/392/491https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/392/491http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/392/491https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/392/491https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/392/491http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/392/491GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/392/491/objects (Program stars: details of the observations and atmosphere parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/392/491/objects?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/392/491/objects?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/392/491/objects?GETtext/xml+votable180.050000true91.85610811.1519840.0055555555555555566/21671 22020 22044 22064 22068-22069 22071 22074 22115 22221 23619 23662 24450 39766 39790 39796 39892 39935 40608https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/392/491?format=asciiOpticaldefaultJ/A+A/392/491/objectsProgram stars: details of the observations and atmosphere parametersphiPhasetime.phasefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharprimaryn_Star[*] Individual note (1)meta.notecharSimbadSimbad column added by the CDSmeta.refcharPerPulsational perioddtime.perioddoubleVmagVisual magnitudemagphot.mag;em.opt.VfloatExpTimeExposure timestime.duration;obs.exposureintJDJulian date of observationdtime.epochdoubleTeffEffective temperatureKphys.temperature.effectiveintloggLogarithm of the gravity (g in cm/s^2)log(cm.s**-2)phys.gravityfloatVturbMicroturbulent velocitykm/sphys.veloc.microTurbfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/392/491/tablea1AbundancesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharIonIonphys.atmol.ionizationcharl_[M/H]Limit flag on [M/H]meta.code.errorchar[M/H]? Relative-to-solar abundancelog(Sun)phys.abundfloatnullableu_[M/H]Uncertainty flag on [M/H]meta.code.errorchare_[M/H]? Standard deviationlog(Sun)stat.errorfloatnullableNlines? Number of lines used in analysismeta.numberintnullablel_(El/H)Limit flag on (El/H)meta.code.errorchar(El/H)? Absolute elemental abundance (H=12)phys.abundfloatnullable