J/AJ/170/259ivo://CDS.VizieR/J/AJ/170/259CDSRoriz M.P.Drake N.A.Holanda N.Lugaro M.Cseh B.Junqueira S.,Pereira C.B.2026-07-24T12:40:57Z2026-07-24T13:11:54ZCDS support team

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

cds-question@unistra.frchemically-peculiar-starsmetallicityeffective-temperaturemolecular-physicsvisible-astronomyspectroscopybarium-starsBarium (Ba) stars belong to binary systems that underwent mass-transfer events. As a consequence, their envelopes were enriched with material synthesized in the interiors of their evolved companions via slow neutron-capture nucleosynthesis, the s-process. As postinteracting binaries, Ba stars figure as powerful tracers of the s-process. In this study, we conduct a classical local thermodynamic equilibrium analysis for a sample of 180 Ba giant stars to find complementary insights for the s-process, in form of elemental abundances of carbon, nitrogen, and oxygen, as well as the ^12^C/^13^C ratio. We found carbon abundances systematically larger than those observed in normal giants, with [C/Fe] ratios ranging within from -0.30 to +0.60dex. As expected, the [C/Fe] ratios increase for lower metallicity regimes and are strongly correlated with the average s-process abundances. Nitrogen abundances have a flat behavior around [N/Fe]~+0.50dex and are moderately correlated with sodium abundances. Except for HD 107541, the entire sample shows C/O<1. We found ^12^C/^13^C<20 for ~80% of the sampled stars and ^12^C/^13^C>60 for three objects.2025AJ....170..259Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/259CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/356/238 : Atmospheric param. in metal-poor stars. III. (Carretta+ 2000)J/A+A/354/169 : Metal-poor field stars abundances (Gratton+, 2000)J/MNRAS/340/304 : [X/Fe] of Galactic disc F and G dwarfs (Reddy+, 2003)J/A+A/402/343 : IR OI triplet, [OI] lines in F-K dwarfs/giants (Takeda, 2003)J/A+A/417/269 : Equivalent widths of two post-AGB stars (Reyniers+, 2004)J/ApJ/617/1091 : La and Eu abundances in 85 stars (Simmerer+, 2004)J/A+A/454/895 : Abundances of 26 barium stars. I. (Allen+, 2006)J/A+A/454/917 : Abundances of 26 barium stars. II. (Allen+, 2006)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/AJ/133/2464 : Parameters and abundances of nearby giants (Luck+, 2007)J/ApJ/696/797 : Evolution and yields of low-mass AGB stars (Cristallo+, 2009)J/A+A/509/A93 : Carbon-enhanced metal-poor stars (Masseron+, 2010)J/A+A/533/A51 : Abundances of 12 metal-rich barium stars (Pereira+, 2011)J/ApJ/764/78 : Oxygen abundances in nearby FGK stars (Ramirez+, 2013)J/A+A/554/A106 : Abundance study of LMC post-AGB stars (van Aarle+, 2013)J/A+A/583/A56 : Abundance study of two LMC post-AGB stars (De Smedt+, 2015)J/MNRAS/459/4299 : Barium stars abundances and kinematics (de Castro+, 2016)J/A+A/587/A6 : Linelist of 14 Galactic post-AGB stars (De Smedt+, 2016)J/A+A/626/A127 : Barium and related stars and WD companions (Jorissen+, 2019)J/MNRAS/486/3266 : Chemical analysis of CH stars (Purandardas+, 2019)J/A+A/645/A61 : Abundances of 25 metal-poor stars (Karinkuzhi+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/259https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/259http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/259https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/259https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/259http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/259GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/170/259/table1 (Carbon, Nitrogen, and Oxygen abundances, isotopic ratios and other quantities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/170/259/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/170/259/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/170/259/table1?GETtext/xml+votable180.050000true173.6349072-9.33139170.0055555555555555566/12289 12533 16989 17020 17049 17091 17705 18497 18506 18543 18575 18659 19060 19271 19466 19560 20740 20787 20997 21011 21029 21035 21136 21310 21690 21744 22023 22154 22214 22233 22235 22328 22331 22462 22902 23122 23224 23657 24640 24844 25323 25455 25509 25574 25631 25647 25829 25835 25950 25984 26029 26630 26632 26852 26957 27491 29015 29932 30300 30659 30873 32784 32847 32980 33101 33185 33208 33837 33919 34127 34131 34139 34216 34445 34540 34659 34683 34961 35286 35361 35549 35600 35759 36069 36189 36839 36841 36986 37262 37287 37500-37501 38061 38117 38364 38398 38525 38545 38604 38618 38640 38711 38734 38748 38858 38882 38893 38996 39195 39342 39391 39447 39560 39582 39766 39774 39977 40004 40160 40271 40311 40742 40964 40999 41278-41279 41382 41511 41834 42004 42023 42915 43009 43301 43509 43542 43665 43685 43860 43912 43961 44389 44488 44686 44693 44885 44899 45001 45027 45045 45248 45346 45429 45529 45616 45695 45736 45900 46352 46790 46891 46994 47050 47071 47207 47247 47329 47473 47522 47537 47629 47757 47794 47996 48138 48516 48546 48800 49005https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/170/259?format=asciiOpticaldefaultJ/AJ/170/259/table1Carbon, Nitrogen, and Oxygen abundances, isotopic ratios and other quantitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStarmeta.id;meta.maincharTeff[4100/5400] Surface effective temperatureKphys.temperature.effectiveintlogg[1.1/3.3] Log of surface gravitylog(cm.s**-1)phys.gravityfloat[Fe/H][-1.11/0.32] Metallicitylog(Sun)phys.abund.Fefloat[C][7.32/8.82] C abundance, log{epsilon} (logAC)log(Sun)phys.abundfloat[N][6.81/8.81] N abundance, log{epsilon} (logAN)log(Sun)phys.abundfloat[O][8.03/9.05] O abundance, log{epsilon} (logAO)log(Sun)phys.abundfloat[C+N][7.54/9.03] C+N abundance, log{epsilon} (logACpN)log(Sun)phys.abundfloatC/N[0.19/4.79] C/N abundance ratiophys.abund;arith.ratiofloatC/O[0.16/1.32] C/O abundance ratiophys.abund;arith.ratiofloat[C/Fe][-0.29/0.6] [C/Fe] Abundance ratiolog(Sun)phys.abund;arith.ratiofloat[N/Fe][-0.0/1.44] [N/Fe] Abundance ratiolog(Sun)phys.abund;arith.ratiofloatSimbadNameSimbad column added by the CDSmeta.idcharnullable[O/Fe][-0.1/0.31] [O/Fe] Abundance ratiolog(Sun)phys.abund;arith.ratiofloatl_12C/13CLimit flag on 12C/13Cmeta.code.errorchar12C/13C[6/80] Carbon isotopic ratiophys.abund;arith.ratiointf_12C/13C:=uncertain quality of carbon ratiometa.codecharC16Link to Castro+2016 (J/MNRAS/459/4299) data for objects within 0.5"meta.ref.urlintnullableP11Link to Pereira+2011 (J/A+A/533/A51) data for objects within 0.5"meta.ref.urlintnullable_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.mainJ/AJ/170/259/table4Line list near the spectral region of the C2 and CN molecular absorption featuresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRegionRegion (1)meta.notecharMolMolecule, atom, or ion (Molecule)meta.notecharlambda[5628/8008.1] Wavelength0.1nmem.wldoubleloggf[0/6.3] Log, statistical weight*oscillator strengthstat.weight;phys.atmol.oscStrengthfloatExPot[-8.35/0.22] Excitation potentialeVphys.atmol.excitationfloatDE[6.24/7.73]? Dissociation energyeVphys.energy;phys.mol.dissociationnullable