J/ApJ/655/492ivo://CDS.VizieR/J/ApJ/655/492doi:10.26093/cds/vizier.16550492CDSAoki W.Beers T.C.Christlieb N.Norris J.E.Ryan S.G.Tsangarides S.2017-10-11T05:13:51Z2009-01-31T20:39:18ZCDS support team

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

cds-question@unistra.frchemically-peculiar-starsspectroscopyphotometryThe chemical compositions of 26 metal-poor stars that exhibit strong CH and/or C2 molecular bands are determined. Twenty-two stars in our sample satisfy our definition for carbon-enhanced metal-poor (CEMP) stars based on the carbon abundance ratio ([C/Fe]) and the evolutionary status. In addition, we measure Na abundances for nine known carbon-enhanced stars. Combining our new sample with the results of previous work, we investigate the abundance and evolutionary status of a total of 64 CEMP stars.2007ApJ...655..492Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/655/492CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/404/187 : Equivalent widths for metal-poor stars (Gratton+, 2003)J/A+A/425/671 : Equivalent widths of 10 metal-poor halo stars (Bai+, 2004)J/A+A/440/321 : Chemical abundances in 43 metal-poor stars (Jonsell+, 2005)J/AJ/130/2804 : Carbon abundances in metal-poor stars (Rossi+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/655/492https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/655/492http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/655/492https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/655/492https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/655/492http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/655/492GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/655/492/stars (Observing log and photometric data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/655/492/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/655/492/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/655/492/stars?GETtext/xml+votable180.050000true195.872533.8516670.0055555555555555566/10430 16603 16654 16865 17543 18579 18636 18663 18708 19968 21195 22650 24918 25551 25948 31273 31427 36196 36426 36503 40319 44870 44990 46663 46724 46792https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/655/492?format=asciiOpticaldefaultJ/ApJ/655/492/ewEquivalent widths (tables 5-7 of the paper)NameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonSpecies identificationmeta.idcharLambdaWavelength in Angstroms0.1nmem.wlfloatLEPExcitation potentialeVphys.atmol.excitationfloatlog(gf)Log of the oscillator strengthphys.atmol.oscStrengthfloatEW1? Equivalent width (1)1e-13mspect.line.eqWidthfloatnullableJ/ApJ/655/492/starsObserving log and photometric datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintNameStar namemeta.id;meta.maincharprimaryn_Name[b] Note on CS 29497-034 (1)meta.notecharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainExpTimeExposure timestime.duration;obs.exposureintCountCounts in 5200{AA}ctphot.countintObs.dateObservation date (UT)time.epoch;obsnullableRV? Radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_RV? Standard error on RV (2)km/sstat.errorfloatnullableExpTime2? Exposure time for Obs.dat2stime.duration;obs.exposureintnullableCount2? Counts in 5200{AA} for Obs.dat2ctphot.countintnullableObs.dat2? Second observation date (UT)time.epochnullableBmagJohnson B magnitudemagphot.mag;em.opt.BfloatVmagJohnson V magnitudemagphot.mag;em.opt.VfloatRmagCousins R magnitudemagphot.mag;em.opt.RfloatImagCousins I magnitudemagphot.mag;em.opt.IfloatJmagJohnson J magnitudemagphot.mag;em.IR.JfloatHmagJohnson H magnitudemagphot.mag;em.IR.HfloatKmagJohnson K magnitudemagphot.mag;em.IR.KfloatE(B-V)Reddeningmagphot.color.excessfloatTeffEffective temperature from (V-K) colour indexKphys.temperature.effectiveintDTeffDifference in effective temperature (1)Kstat.fit;arith.zpintSimbadNameSimbad column added by the CDSmeta.idchar