J/AJ/165/154ivo://CDS.VizieR/J/AJ/165/154doi:10.26093/cds/vizier/be-55-4tCDSGoswami P.P.Goswami A.2026-07-02T11:44:21Z2023-09-12T06:10:42ZCDS support team

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

cds-question@unistra.fra-starsvisible-astronomyspectroscopychemical-abundanceseffective-temperatureWe have performed detailed high-resolution spectroscopic analysis on seven metal-poor stars (BD+75348, BD+093019, HD238020, HE0319-0215, HE0507-1653, HE0930-0018, HE1023-1504) and derived their atmospheric parameters Teff, logg, [Fe/H], and microturbulent velocity ({xi}). The metallicity range is found to be -2.57<[Fe/H]<-0.42. The elemental abundances of 17 light elements and 12 heavy elements are estimated. We have classified BD+75348 and BD+093019 as strong Ba stars, HD238020 as a mild Ba star, and the remaining four objects as CEMP-s stars. We have estimated the masses of the stars from Hertzsprung-Russel (HR) diagram, and, compiling the data of 205 Ba stars from literature, estimated the mass distribution of Ba stars. We have also estimated the initial masses of the companion AGBs of the program stars as well as the masses of the companion AGBs of 159 Ba and 36 CEMP-s stars from literature, with the help of a parametric-model-based analysis using FRUITY models. While the primary mass distribution of mild Ba stars peaks at 3.7M{sun}, for the strong Ba stars the peak appears at 2.5M{sun}. We, therefore, propose that the initial masses of the progenitor AGBs dominantly control the formation of mild and strong Ba stars. However, a clear overlap, in the range 1.3-4.0M{sun}, noticed between the progenitor masses of both the subclasses of Ba stars, may indicate that other factors, such as the metallicities and the orbital periods, may also have significant contributions. The progenitor AGBs' mass distribution of CEMP-s stars is found to peak at 2.03M{sun}.2023AJ....165..154Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/154CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)V/81 : Taxonomy of Barium Stars (Lu 1991)J/A+A/275/101 : Chemical evolution of galactic disk I. (Edvardsson+ 1993)J/A+A/326/722 : HIPPARCOS Ba stars (Mennessier+ 1997)J/A+A/369/178 : Effective temperatures of carbon-rich stars (Bergeat+, 2001)J/A+A/375/366 : Carbon stars from the Hamburg/ESO survey (Christlieb+ 2001)J/A+A/410/527 : Abundances in the Galactic disk (Bensby+, 2003)J/A+A/415/155 : Oxygen abundances in the Galactic disk (Bensby+, 2004)J/A+A/418/551 : Galactic disk stars abund. & velocities (Mishenina+, 2004)J/A+A/454/895 : Abundances of 26 barium stars. I. (Allen+, 2006)J/AJ/132/85 : Equivalent width of 33 metal-poor RHB (Preston+, 2006)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/ApJ/655/492 : Equivalent widths of 26 metal-poor stars (Aoki+, 2007)J/A+A/509/A93 : Carbon-enhanced metal-poor stars (Masseron+, 2010)J/ApJS/194/35 : Atomic transition probabilities of Mn (Den Hartog+, 2011)J/MNRAS/427/343 : Infrared excesses of Hipparcos stars (McDonald+, 2012)J/ApJ/762/26 : Metal-poor stars. II. 190 Galactic halo stars (Yong+, 2013)J/ApJS/215/20 : Vanadium loggf and transition probabilities (Lawler+, 2014)J/A+A/571/A47 : Extensive linelist CH stellar atmospheres (Masseron+, 2014)J/ApJS/211/5 : Improved line data for Swan system ^12^C^13^C (Ram+, 2014)J/ApJS/214/26 : Line lists for CN isotopes transitions (Sneden+, 2014)J/MNRAS/459/4299 : Barium stars abundances and kinematics (de Castro+, 2016)J/ApJS/226/1 : Carbon stars from LAMOST DR2 data (Ji+, 2016)J/A+A/586/A158 : Binary properties of CH and CEMP stars (Jorissen+, 2016)J/ApJ/821/37 : Abundances of metal-poor star HD 94028 (Roederer+, 2016)J/A+A/608/A100 : CMD and mass distribution of Ba stars (Escorza+, 2017)J/A+A/623/A128 : Galactic halo CEMP stars abund. & kinematics (Hansen+, 2019)J/A+A/626/A127 : Barium and related stars and WD companions (Jorissen+, 2019)J/A+A/649/A49 : Spectroscopic study of CEMP-(s & r/s) stars (Goswami+, 2021)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/165/154https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/154http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/154https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/154https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/154http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/154GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/165/154/stars (Basic data and radial velocities of the program stars (table1 + table3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/154/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/154/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/154/stars?GETtext/xml+votable180.050000true131.548574.54201110.005555555555555556Cone search capability for table J/AJ/165/154/table13 (Masses of the Ba-stars and initial masses of their AGB companions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/154/table13?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/154/table13?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/154/table13?GETtext/xml+votable180.050000true33.0456525-1.07659220.005555555555555556Cone search capability for table J/AJ/165/154/table14 (Initial masses of AGB companions of CEMP-s stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/154/table14?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/154/table14?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/154/table14?GETtext/xml+votable180.050000true171.70495473.8643450.0055555555555555566/846 1017 1847 2364 2555 4041 6009 6224 7992 8197 8292 9274 12289 12533 12880 13687 15363 15432 16659 16680 16989 17020 17049 17091 17487 17705 17726 18483 18497 18506 18543 18575 18606 18634 18653 18659 18667 18737 18973 19060 19271 19466 20057 20205 20740 20787 20997 21011 21029 21035 21136 21195 21310 21328 21457 21690 21744 22023 22154 22214 22221 22233 22260 22288 22328 22331 22462 22655 22902 23050 23122 23124 23180 23224 23240 23328 23657 24003 24640 24718 24844 25008 25323 25509 25574-25575 25631 25647 25829 25835 25950 25984 26029 26630 26632 26655 26660 26852 26995 27048 27091 27106 27283 27491 28475 29015 29932 30042 30300 30640 30659 30730 30760 30873 32400 32784 32847 32980 33101 33185 33208 33408 33494 33573 33751 33837 33919 34046 34131 34139 34166 34216 34445 34540 34659 34683 34870 34961 35034 35186 35286 35361 35549 35600 35759 36069 36189 36410 36839 36841 36986 37500-37501 38061 38117 38364 38398 38525 38545 38604 38640 38711 38733-38734 38748 38792 38806 38858 38882 38893 38996 39195 39342 39391 39425 39447 39560 39766 39774 39786 39977 40004 40139 40271 40311 40742 40795 40964 40999 41278-41279 41382 41453 41511 42004 42023 42915 42964 43009 43301 43321 43509 43542 43665 43685 43860 43912 43961 44389 44488 44671 44686 44693 44721 44899 44909 44939 45001 45045 45248 45346 45429 45616 45695 45736 45900 46156 46352 46476 46688 46790 46840 46891 46994 47050 47071 47207 47247 47311 47329 47396 47473 47522 47537 47629 47757 47794 47987 47996 48411 48516 48546 48722 48800 49005 49078https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/154?format=asciiOpticaldefaultJ/AJ/165/154/starsBasic data and radial velocities of the program stars (table1 + table3)SimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identifiermeta.id;meta.maincharRAJ2000[3/15] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainRefSpectrum reference(s)meta.refcharBmag[9.34/16.3] B-band magnitudemagphot.mag;em.opt.BfloatVmag[8.49/14.7] V-band magnitudemagphot.mag;em.opt.VfloatJmag[6.9/12.4] J-band magnitudemagphot.mag;em.IR.JfloatHmag[6.51/11.7] H-band magnitudemagphot.mag;em.IR.HfloatKmag[6.38/11.5] K-band magnitudemagphot.mag;em.IR.KfloatTexp[1200/2700] Exposure timestime.duration;obs.exposureintObsObservation date, daytime.epoch;obsS/N4000[7/70] Signal-to-Noise ratio at 4000{AA}stat.snrintS/N6000[25/200] Signal-to-Noise ratio at 6000{AA}stat.snrintRVel[-258/350] Radial velocity estimates in this workkm/sspect.dopplerVelocfloate_RVel[0.3/4] Error on RVelkm/sstat.error;spect.dopplerVelocfloatRVel-G[-233/354]? Gaia DR2 radial velocitykm/sspect.dopplerVelocfloatnullablee_RVel-G[0.1/5]? Error on RVel-Gkm/sstat.errorfloatnullableJ/AJ/165/154/table4Equivalent widths of Fe-lines used for deriving atmospheric parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonElement identifier FeI or FeIIphys.atmol.ionStagecharWave[4187/6740] Wavelength in Angstroms0.1nmem.wldoubleElow[0/4.99] Lower excitation energyeVphys.atmol.excitation;stat.minfloatloggf[-4.95/0.52] log oscillator strengthphys.atmol.oscStrengthfloatBD+75348[42.2/188.2]? Equivalent width in BD+75-3481e-13mspect.line.eqWidthfloatnullable[BD+75348][6.74/7.48]? Derived abundance in BD+75-348phys.abund.FefloatnullableBD+093019[32.7/197]? Equivalent width in BD+09-30191e-13mspect.line.eqWidthfloatnullable[BD+093019][6.58/7.23]? Derived abundance in BD+09-3019phys.abund.FefloatnullableHD238020[20.7/222]? Equivalent width in HD2380201e-13mspect.line.eqWidthfloatnullable[HD238020][6.51/7.22]? Derived abundance in HD238020phys.abund.FefloatnullableHE03190215[35.5/1233]? Equivalent width in HE0319-02151e-13mspect.line.eqWidthfloatnullable[HE03190215][4.76/5.16]? Derived abundance in HE0319-0215phys.abund.FefloatnullableHE05081653[29.3/180]? Equivalent width in HE0508-16531e-13mspect.line.eqWidthfloatnullable[HE05081653][5.83/6.22]? Derived abundance in HE0508-1653phys.abund.FefloatnullableHE09300018[20.2/153]? Equivalent width in HE 0930-00181e-13mspect.line.eqWidthfloatnullable[HE09300018][5.93/6.3]? Derived abundance in HE0930-0018phys.abund.FefloatnullableHE10231504[29.4/164]? Equivalent width in HE 1023-15041e-13mspect.line.eqWidthfloatnullable[HE10231504][5.61/6.08]? Derived abundance in HE1023-1504phys.abund.FefloatnullableJ/AJ/165/154/table6Equivalent widths of Fe-lines used for the calculation of elemental abundancesloggf[-5.7/0.69] log oscillator strengthphys.atmol.oscStrengthfloatBD+75348[23.0/191.2]? Equivalent width in BD+75 3481e-13mspect.line.eqWidthfloatnullable[BD+75348][1.49/7.59]? Derived abundance in BD+75-348phys.abundfloatnullableBD+093019[69.7/180]? Equivalent width in BD+0930191e-13mspect.line.eqWidthfloatnullable[BD+093019][2.43/8.31]? Derived abundance in BD+093019phys.abundfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWave[4061/6768] Wavelength in Angstroms0.1nmem.wldoubleIonElement identifierphys.atmol.ionStagecharElow[0/5.61] Lower excitation energyeVphys.atmol.excitation;stat.minfloatHD238020[8.1/339]? Equivalent width in HD2380201e-13mspect.line.eqWidthfloatnullable[HD238020][0.36/7.38]? Derived abundance in HD238020phys.abundfloatnullableHE03190215[21.9/119]? Equivalent width in HE0319-02151e-13mspect.line.eqWidthfloatnullable[HE03190215][0.01/5.51]? Derived abundance in HE03190215phys.abundfloatnullableHE05081653[14.3/149]? Equivalent width in HE0508-16531e-13mspect.line.eqWidthfloatnullable[HE05081653][1.25/6.81]? Derived abundance in HE0508-1653phys.abundfloatnullableHE09300018[18.5/180]? Equivalent width in HE0930-00181e-13mspect.line.eqWidthfloatnullable[HE09300018][0.35/6.69]? Derived abundance in HE09300018phys.abundfloatnullableHE10231504[29.7/162]? Equivalent width in HE1023-15041e-13mspect.line.eqWidthfloatnullable[HE10231504][1.14/5.67]? Derived abundance in HE1023-1504phys.abundfloatnullableJ/AJ/165/154/table13Masses of the Ba-stars and initial masses of their AGB companionsSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identifier (1)meta.id;meta.maincharTeff[3609/6440] Effective temperatureKphys.temperature.effectiveintlogg[0.6/4.6] log surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-1.11/0.23] Metallicitylog(Sun)phys.abund.Fefloat[ls/Fe][-0.14/1.75]? log average abundance of light-s process elementsphys.abund.Zfloatnullable[hs/Fe][0.17/2.13] log average abundance of heavy-s process elementsphys.abund.Zfloat[hs/ls][-0.37/0.98]? log abundance difference of heavy-s to light-s process elementsphys.abund.ZdoublenullableMass[0.8/4.5]? Ba star masssolMassphys.massfloatnullableMassi[1.5/6]? Initial stellar AGB masssolMassphys.massfloatnullablechi2[0.01/43.2]? Model {chi}^2^ valuestat.fit.chi2floatnullabledil[0.0009/1.91]? Dilution factorarith.factordoublenullableNel[4/16]? Number of elements used in analysismeta.numberintnullableTypeType of Ba starssrc.classcharRefReference code (2)meta.refchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/165/154/table14Initial masses of AGB companions of CEMP-s starsSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identifiermeta.id;meta.maincharTeff[4000/6625] Effective temperatureKphys.temperature.effectiveintlogg[0.5/4.3] log surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-3/-1.29] Metallicitylog(Sun)phys.abund.FefloatMassi[1.3/3]? Initial stellar AGB masssolMassphys.massfloatnullablechi2[0.19/24.8] Model {chi}^2^ valuestat.fit.chi2floatdil[0.001/1.76] Dilution factorarith.factordoubleNel[4/12] Number of elements used in analysismeta.numberint