J/PAZh/37/781ivo://CDS.VizieR/J/PAZh/37/781CDSUsenko I.A.Berdnikov L.N.Kravtsov V.V.Kniazev A.Yu.Chini R.,Hoffmeister V.H.Stahl O.Drass H.2017-10-09T13:34:17Z2012-01-05T14:58:52ZCDS support team

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

cds-question@unistra.frvariable-starschemical-abundancesFor seven faint southern Cepheids (WW Car, SX Car, UZ Car, UY Car, GX Car, HW Car, YZ Car), we have determined their atmospheric parameters and chemical composition for the first time based on ten high-resolution (R=50000) spectra taken with the 1.5-m Hexapod telescope at the Joint Observatory of the Northern Catholic University (Antofagasta, Chile) and the Ruhr University (Bochum, Germany). Six objects from the list demonstrate atmospheric parameters and chemical composition typical of Cepheids that have passed through the first dredge-up phase, while WW Car is probably an anomalous Cepheid. According to our preliminary estimates, it has an overabundance of CNO, a deficit of sodium and aluminium, and a slight deficit of magnesium, with iron and other elements being underabundant relative to the Sun.2011PAZh...37..781Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/37/781CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/305/551 : Chemical composition of the s-Cepheids (Andrievsky+, 1996)J/AJ/113/1073 : Abundances in Cepheid Variables (Fry+ 1997)J/AJ/114/341 : Type II Cepheids (Gonzalez+ 1997)J/A+A/381/32 : Galactic Cepheid abundances (Andrievsky+, 2002)J/A+A/392/491 : Galactic abundance gradient. III. (Andrievsky+, 2002)J/A+A/413/159 : Galactic abundance gradient. V. (Andrievsky+, 2004)J/AJ/128/343 : Abundances of 10 Cepheids (Luck+, 2004)J/AJ/129/433 : Abundances & equivalent widths of 14 Cepheids (Kovtyukh+, 2005)J/AJ/130/1880 : Cepheids with periods between 3 and 6 days (Andrievsky+, 2005)J/AJ/132/902 : Abundances of 54 Cepheids (Luck+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/37/781https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PAZh/37/781http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PAZh/37/781https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PAZh/37/781https://vizier.iucaa.in/viz-bin/votable?-source=J/PAZh/37/781http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PAZh/37/781GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PAZh/37/781/table12 (Information about the program Cepheids and their observations, atmospheric parameters and light elements (tables 1-2 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PAZh/37/781/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/PAZh/37/781/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PAZh/37/781/table12?GETtext/xml+votable180.050000true162.899167-59.3850.0055555555555555566/37330 37334 37335 37340 37357 37931 38020https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PAZh/37/781?format=asciiOpticaldefaultJ/PAZh/37/781/table12Information about the program Cepheids and their observations, atmospheric parameters and light elements (tables 1-2 of the paper)Per? Perioddtime.periodfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCepheid namemeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.VfloatNObs[1/3] Number of the observationmeta.numberintObsDateObservation date (HJD-2450000)dtime.epoch;obsdoubleS/NSignal-to-noise ratio of the observationobs.param;obsintTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloatVtTurbulent velocitykm/sphys.veloc.microTurbfloattmax? Initial time of maximum (HJD-2450000)dtime.epochdoublenullablePhasePhase (associated to observation)time.phasefloatSimbadSimbad column added by the CDScharJ/PAZh/37/781/abundElemental abundances (tables 3-5 of the paper)NameCepheid namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNObs[1/3] Number of the observationmeta.numberintElElementphys.atmol.elementchar[El/H]? Elemental abundancephys.abundfloatnullablee_[El/H]? rms uncertainty on [El/H]stat.error;phys.abundfloatnullableNL? Number of lines usedmeta.numberintnullable