Abundances of 54 CepheidsJ/AJ/132/902ivo://CDS.VizieR/J/AJ/132/902doi:10.26093/cds/vizier.51320902CDSLuck R.E.Kovtyukh V.V.Andrievsky S.M.2017-11-10T11:15:13Z2008-04-11T16:33:47ZCDS support teamCDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, Francecds-question@unistra.frvariable-starschemical-abundancesThis paper reports on the spectroscopic investigation of 54 Cepheids, deriving parameters and abundances. These Cepheids extend previous samples by about 35% in number and increase the amount of the Galactic disk coverage, especially in the direction of l~120{deg}. We find that there exists in the Galactic disk at that longitude and at a solar distance of about 3-4kpc a region that has enhanced abundances, <[Fe/H]>~+0.2, with respect to the local region. A simple linear fit to all Cepheid data now extant yields a gradient d[Fe/H]/dR=-0.068+/-0.003dex/kpc. After consideration of the spatial abundance inhomogeneities in the sample, we conclude that the best current estimate of the overall gradient is d[Fe/H]/dR=-0.06dex/kpc.2006AJ....132..902Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/902CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/902https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/902http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/902https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/132/902https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/132/902http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/132/902GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/132/902/stars (Summary of stars studied (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/132/902/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/132/902/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/132/902/stars?GETtext/xml+votable180.050000true74.92291740.8361110.0055555555555555566/1340 1388 1432 1445 1836 1858 1920 3000 3005 3033 3047 3263 3616 13309 13310 13931 13990 14009 14205 14238 14239 14260 14265 14271 14283 14295 14303 14328 14601 14637 14709 14718 14770 15360 15618 15660 21514 22106 23654 28717 28893 28991 29032 29110 29216 29999 30211 30222 30580 30609 40580 42820https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/132/902?format=asciiOpticaldefault
J/AJ/132/902/starsSummary of stars studied (from Simbad)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSimbad namemeta.id;meta.maincharprimaryRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainBmagSimbad B band magnitudemagphot.mag;em.opt.BfloatVmagSimbad V band magnitudemagphot.mag;em.opt.VfloatSpTypeSimbad MK spectral typesrc.spTypecharSimbadNameSimbad column added by the CDSmeta.idchar
J/AJ/132/902/table6Detailed [x/H] Data for Program CepheidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource identificationmeta.id;meta.maincharIonIon namephys.atmol.ionStagecharX/H? Log of the mean Ion/H number abundancephys.abundfloatnullablee_X/H? Standard deviation in X/Hstat.error;phys.abundfloatnullableo_X/H? Number of lines used to derived X/Hmeta.numberintnullable