J/MNRAS/460/1356ivo://CDS.VizieR/J/MNRAS/460/1356doi:10.26093/cds/vizier.74601356CDSRamya P.Reddy B.E.Lambert D.L.Musthafa M.M.2024-08-16T20:17:07Z2017-11-21T09:52:09ZCDS support team

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

cds-question@unistra.frk-starsgiant-starschemical-abundancesAn abundance analysis is reported of 58-K giants identified by Famaey et al. (2005, J/A+A/430/165) as highly probable members of the Hercules stream selected from stars north of the celestial equator in the Hipparcos catalogue. The giants have compositions spanning the interval [Fe/H] from -0.17 to +0.42 with a mean value of +0.15 and relative elemental abundances [El/Fe] representative of the Galactic thin disc. Selection effects may have biased the selection from the Hipparcos catalogue against the selection of metal-poor stars. Our reconsideration of the recent extensive survey by Bensby et al. of FG dwarfs, including metal-poor stars, provides a [Fe/H] distribution for the Hercules stream, which is similar to that from the 58 giants. It appears that the stream is dominated by metal-rich stars from the thin disc. We discuss suggestions in the literature that the stream includes metal-poor stars from the thick disc.2016MNRAS.460.1356Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/460/1356CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/430/165 : Radial velocities for 6691 K and M giants (Famaey+, 2005)J/AJ/133/2464 : Parameters and abundances of nearby giants (Luck+, 2007)J/AZh/88/284 : Chemical abundance of Hercules moving group (Pakhomov+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/460/1356https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/460/1356http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/460/1356https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/460/1356https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/460/1356http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/460/1356GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/460/1356/table2 (Derived atmospheric parameters of giants from the Hercules stream)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/460/1356/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/460/1356/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/460/1356/table2?GETtext/xml+votable180.050000true0.805479417.55226830.0055555555555555566/243 544 670 1420 1650 1885 2060 2118 2555 2822 3331 3438 4571 5220 5349 6198 6761 6827 6882 6933 7007 7039 7058 7136 7465 7657 9695 12486 12574 12662 12720 12784 13417 13610 13882 14046 14159 14516 15217 15629 15913 17874 18393 19703 19823 19953 19964 20038 20175 20251 20414 23305 23499 24228 24374 28634 30077 30708https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/460/1356?format=asciidefaultJ/MNRAS/460/1356/linelistAdopted Fe line data (table 1) and adopted line list for elements other than Fe (table 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElementphys.atmol.elementcharlambdaWavelength0.1nmem.wlfloatLEPLower excitation potentialeVphys.atmol.excitation;stat.minfloatloggfOscillator strengthphys.atmol.oscStrengthfloatWlambdaSolar line width0.1pmspect.line.widthfloatlogEpsSolar abundancephys.abundfloatJ/MNRAS/460/1356/table2Derived atmospheric parameters of giants from the Hercules streamrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharTeff(J-K)? Effective temperature from J-K colour indexKphys.temperature.effectiveintnullableTeff(V-K)? Effective temperature from V-K colour indexKphys.temperature.effectiveintnullableTeff(sp)Effective temperature from spectrumKphys.temperature.effectiveintlogg(ph)Photometric surface gravitylog(cm.s**-2)phys.gravityfloate_logg(ph)rms uncertainty on logg(ph)log(cm.s**-2)stat.errorfloatlogg(sp)Spectroscopic surface gravitylog(cm.s**-2)phys.gravityfloatvtMicroturbulent velocitykm/sphys.velocfloat[M/H]Metallicityphys.abund.ZfloatAgeAgeGyrtime.agefloate_Agerms uncertainty on AgeGyrstat.error;time.agefloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/460/1356/table4Derived solar abundances compared with the values of Asplund et al. (2009ARA&A..47..481A)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElementphys.atmol.elementcharlogEpsCCurrent abundancephys.abundfloate_logEpsCrms uncertainty on logEpsC (line-to-line scatter)stat.errorfloatNNumber of line usedmeta.numberintlogEpsAAsplund et al. (2009ARA&A..47..481A) abundancephys.abundfloate_logEpsArms uncertainty on logEpsA (line-to-line scatter)stat.errorfloatDlogEpsDifference (logEpsC-logEpsA)phys.abundfloatJ/MNRAS/460/1356/abundAbundances for Hercules stream members (tables 5 and 6)[TiI/Fe]Abundance [TiI/Fe]phys.abundfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.mainchar[FeI/H]Abundance [FeI/H]phys.abundfloate_[FeI/H]rms uncertainty on [FeI/H] (line-to-line scatter)stat.error;phys.abundfloato_FeINumber of FeI line usedmeta.numberint[FeII/H]Abundance [FeII/H]phys.abundfloate_[FeII/H]rms uncertainty on [FeII/H] (line-to-line scatter)stat.error;phys.abundfloato_FeIINumber of FeII line usedmeta.numberint[Na/Fe]Abundance [Na/Fe]phys.abundfloate_[Na/Fe]rms uncertainty on [Na/Fe] (line-to-line scatter)stat.error;phys.abundfloato_NaNumber of Na line usedmeta.numberint[Mg/Fe]Abundance [Mg/Fe]phys.abundfloate_[Mg/Fe]rms uncertainty on [Mg/Fe] (line-to-line scatter)stat.error;phys.abundfloato_MgNumber of Mg line usedmeta.numberint[Al/Fe]Abundance [Al/Fe]phys.abundfloate_[Al/Fe]rms uncertainty on [Al/Fe] (line-to-line scatter)stat.error;phys.abundfloato_AlNumber of Al line usedmeta.numberint[Si/Fe]Abundance [Si/Fe]phys.abundfloate_[Si/Fe]rms uncertainty on [Si/Fe] (line-to-line scatter)stat.error;phys.abundfloato_SiNumber of Si line usedmeta.numberint[Ca/Fe]Abundance [Ca/Fe]phys.abundfloate_[Ca/Fe]rms uncertainty on [Ca/Fe] (line-to-line scatter)stat.error;phys.abundfloato_CaNumber of Ca line usedmeta.numberint[Sc/Fe]Abundance [Sc/Fe] (1)phys.abundfloate_[Sc/Fe]rms uncertainty on [Sc/Fe] (line-to-line scatter)stat.error;phys.abundfloato_ScNumber of Sc line usedmeta.numberinte_[TiI/Fe]rms uncertainty on [TiI/Fe] (line-to-line scatter)stat.error;phys.abundfloato_TiINumber of TiI line usedmeta.numberint[TiII/Fe]Abundance [TiII/Fe]phys.abundfloate_[TiII/Fe]rms uncertainty on [TiII/Fe] (line-to-line scatter)stat.error;phys.abundfloato_TiIINumber of TiII line usedmeta.numberint[V/Fe]Abundance [V/Fe] (1)phys.abundfloate_[V/Fe]rms uncertainty on [V/Fe] (line-to-line scatter)stat.error;phys.abundfloato_VNumber of V line usedmeta.numberint[Cr/Fe]Abundance [Cr/Fe]phys.abundfloate_[Cr/Fe]rms uncertainty on [Cr/Fe] (line-to-line scatter)stat.error;phys.abundfloato_CrNumber of Cr line usedmeta.numberint[Mn/Fe]Abundance [Mn/Fe] (1)phys.abundfloate_[Mn/Fe]rms uncertainty on [Mn/Fe] (line-to-line scatter)stat.error;phys.abundfloato_MnNumber of Mn line usedmeta.numberint[Co/Fe]Abundance [Co/Fe] (1)phys.abundfloate_[Co/Fe]rms uncertainty on [Co/Fe] (line-to-line scatter)stat.error;phys.abundfloato_CoNumber of Co line usedmeta.numberint[Ni/Fe]Abundance [Ni/Fe]phys.abundfloate_[Ni/Fe]rms uncertainty on [Ni/Fe] (line-to-line scatter)stat.error;phys.abundfloato_NiNumber of Ni line usedmeta.numberint[Zn/Fe]Abundance [Zn/Fe]phys.abundfloate_[Zn/Fe]rms uncertainty on [Zn/Fe] (line-to-line scatter)stat.error;phys.abundfloato_ZnNumber of Zn line usedmeta.numberint[Ba/Fe]Abundance [Ba/Fe] (1)phys.abundfloate_[Ba/Fe]rms uncertainty on [Ba/Fe] (line-to-line scatter)stat.error;phys.abundfloato_BaNumber of Ba line usedmeta.numberintJ/MNRAS/460/1356/table7Abundance sensitivities to various parameters for the star HIP 8926recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintParamAbundance ratio identificationmeta.notecharNNumber of line usedmeta.numberintsigma(Teff)Uncertainty in abundance ratio due to effective temperaturestat.errorfloatsigma(logg)Uncertainty in abundance ratio due to surface gravitystat.errorfloatsigma(vt)Uncertainty in abundance ratio due to microturbulent velocitystat.errorfloatsigma([M/H])Uncertainty in abundance ratio due to metallicitystat.errorfloatsigma(W)Uncertainty in abundance due to line widthstat.errorfloatsigmaNetNet uncertainty in abundance ratio (1)stat.errorfloatJ/MNRAS/460/1356/table8Comparisons with Pakhomov et al. (2011, Cat. J/AZh/88/284) for common starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharD[NaI/H]Abundance difference [NaI/H] (mean 0.06+/-0.09) (1)obs.param;arith.difffloatD[MgI/H]Abundance difference [MgI/H] (mean 0.01+/-0.08) (1)obs.param;arith.difffloatD[AlI/H]Abundance difference [AlI/H] (mean 0.03+/-0.09) (1)obs.param;arith.difffloatD[SiI/H]Abundance difference [SiI/H] (mean -0.04+/-0.09) (1)obs.param;arith.difffloatD[CaI/H]Abundance difference [CaI/H] (mean -0.15+/-0.14) (1)obs.param;arith.difffloatD[ScII/H]Abundance difference [ScII/H] (mean 0.03+/-0.14) (1)obs.param;arith.difffloatD[TiI/H]Abundance difference [TiI/H] (mean 0.06+/-0.14) (1)obs.param;arith.difffloatD[VI/H]Abundance difference [VI/H] (mean 0.01+/-0.15) (1)obs.param;arith.difffloatD[CrI/H]Abundance difference [CrI/H] (mean 0.01+/-0.09) (1)obs.param;arith.difffloatD[MnI/H]Abundance difference [MnI/H] (mean 0.16+/-0.12) (1)obs.param;arith.difffloatD[FeI/H]Abundance difference [FeI/H] (mean 0.03+/-0.08) (1)obs.param;arith.difffloatD[FeII/H]Abundance difference [FeII/H] (mean 0.05+/-0.09) (1)obs.param;arith.difffloatD[CoI/H]Abundance difference [CoI/H] (mean 0.06+/-0.09) (1)obs.param;arith.difffloatD[NiI/H]Abundance difference [NiI/H] (mean 0.07+/-0.09) (1)obs.param;arith.difffloatD[BaII/H]Abundance difference [BaII/H] (mean 0.25+/-0.17) (1)obs.param;arith.difffloatDTeffEffective temperature difference (mean 115+/-98) (1)Kobs.param;arith.diffintDloggSurface gravity difference (mean 0.35+/-0.33) (1)log(cm.s**-2)obs.param;arith.difffloatDvtMicroturbulent velocity difference (mean 0.12+/-0.08) (1)km/sobs.param;arith.difffloatJ/MNRAS/460/1356/table9El/Fe for three [Fe/H] intervals for our sample of Hercules stream giants and the local giants of Luck & Heiter (2007, Cat. J/AJ/133/2464)ParamEntitymeta.notecharNH3Number of line used for MeanH3meta.numberinte_MeanH3Uncertainty on MeanH3stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMeanLH1Mean entity value for [Fe/H] interval= -0.2 to 0.0 (1)phys.abundfloate_MeanLH1Uncertainty on Mean1stat.errorfloatNLH1Number of line used for Mean1meta.numberintMeanH1Mean entity value for [Fe/H] interval= -0.2 to 0.0 (2)phys.abundfloate_MeanH1Uncertainty on MeanH1stat.errorfloatNH1Number of line used for MeanH1meta.numberintMeanLH2Mean entity value for [Fe/H] interval= 0.0 to +2.00 (1)phys.abundfloate_MeanLH2Uncertainty on MeanLH2stat.errorfloatNLH2Number of line used for MeanLH2meta.numberintMeanH2Mean entity value for [Fe/H] interval= 0.0 to +2.00 (2)phys.abundfloate_MeanH2Uncertainty on MeanH2stat.errorfloatNH2Number of line used for MeanH2meta.numberintMeanLH3? Mean entity value for [Fe/H] interval= +0.20 to +0.40 (1)phys.abundfloatnullablee_MeanLH3? Uncertainty on MeanLH3stat.errorfloatnullableNLH3? Number of line used for MeanLH3meta.numberintnullableMeanH3Mean entity value for [Fe/H] interval= +0.20 to +0.40 (2)phys.abundfloat