J/A+A/440/321ivo://CDS.VizieR/J/A+A/440/321doi:10.26093/cds/vizier.34400321CDSJonsell K.Edvardsson B.Gustafsson B.Magain P.Nissen P.E.Asplund M.2017-10-16T14:58:40Z2005-09-17T21:37:23ZCDS support team

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

cds-question@unistra.frpopulation-ii-starschemically-peculiar-starsvisible-astronomymedium-band-photometryline-intensitiesWe have derived abundances of O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Fe, Ni and Ba for 43 metal-poor field stars in the solar neighbourhood, most of them subgiants or turn-off-point stars, with iron abundances [Fe/H] ranging from -0.4 to -3.0. About half of this sample has not been analysed spectroscopically in detail before. Effective temperatures were estimated from uvby photometry, and surface gravities primarily from Hipparcos parallaxes. The analysis is differential relative to the Sun, and carried out with plane-parallel MARCS models. Various sources of error are discussed and found to contribute a total error of about 0.1-0.2dex for most elements, while relative abundances, such as [Ca/Fe], are most probably more accurate. For the oxygen abundances, determined in an NLTE analysis of the 7774{AA} triplet lines, the errors may be somewhat larger.2005A&A...440..321Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/440/321CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/440/321https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/440/321http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/440/321https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/440/321https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/440/321http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/440/321GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/440/321/table2 (Stellar data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/440/321/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/440/321/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/440/321/table2?GETtext/xml+votable180.050000true40.167061-69.2330040.0055555555555555566/4376 12451 12704 22527 26347 28336 30577 33018 33273 37232 37651 37831 37985 38152 38216 38566 38908 39030 39679 39893 40716 41460 41591 41721 42331 42618 43068 43280 43445 43786 44208 44281 44501 44542 45353 45485 46023 46053 46909 47147 48731 48736 49078https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/440/321?format=asciiOpticaldefaultJ/A+A/440/321/table1Equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD identification numberintElemElement abbreviationcharZAtomic numberintStage[1/2] Ionization stage: 1: neutral, 2: singly ionizedintLambdaAir wavelength in Angstrom0.1nmdoubleEWEquivalent width0.1pmfloatu_EWUncertainty flag on EWcharJ/A+A/440/321/table2Stellar datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD identification numberintprimaryVmagVisual apparent magnitudemagfloat(b-y)Stromgren colour indexmagfloatc1Stromgren Balmer discontinuity indexmagfloatr_(b-y)References for Stromgren photometry (1)charUVelStellar U velocity relative to the LSR (2)km/sintVVelStellar V velocity relative to the LSRkm/sintWVelStellar W velocity relative to the LSRkm/sintMassStellar mass derived from evolutionary trackssolMassfloatModel[1/2] Reference for Evolutionary tracks (3)intr_Mass[2/3]? Marker of uncertain stellar mass (4)intnullableTeffEffective temperature in KKintr_Teff[1]? 1: Teff from Zacs et al., 1998A&A...337..216Zintnullable[Fe/H]Iron abundance set equal to the overall model metal abundance (5)log(Sun)floatloggLog of surface gravitylog(cm.s**-2)floatr_logg[1]? 1: logg from Zacs et al., 1998A&A...337..216ZintnullablevtMicroturbulence parameterkm/sfloatr_vt[1]? 1: vt from Zacs et al., 1998A&A...337..216ZintnullableClassMK spectral classification of the stars according to the SIMBAD databasecharNoteNotes about the stars (6)charSimbadSimbad column added by the CDSchar_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/A+A/440/321/table3Atomic line data and solar abundancesEWSunSolar equivalent width in mA0.1pmfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElemElement abbreviationcharZAtomic numberintStageIonization stage: 1: neutral, 2: singly ionizedintLambdaAir wavelength in Angstrom0.1nmdoublelogepsSolar photospheric abundance (1)floatloggfThe oscillator strength multiplied with the statistical weight, all in logarithmfloatElowLower transition level excitation energyeVfloatDflag[1/2] Pressure damping flag (2)intDcorrDamping correction factor applied when Dflag set to 0floatGammaRadiation damping constants**-1doubleLevelLLower level identification of the transitioncharLevelUUpper level identification of the transitioncharJ/A+A/440/321/table4Chemical abundancesHDHD identification numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[FeI/H]Iron abundance from Fe I (1)log(Sun)float[OI/H]? Oxygen abundance from O I (1),(2)log(Sun)floatnullable[NaI/H]? Sodium abundance from Na I (1)log(Sun)floatnullable[MgI/H]? Magnesium abundance from Mg I (1)log(Sun)floatnullable[AlI/H]? Aluminium abundance from Al I (1)log(Sun)floatnullable[SiI/H]? Silicon abundance from Si I (1)log(Sun)floatnullable[CaI/H]? Calcium abundance from Ca I (1)log(Sun)floatnullable[ScII/H]? Scandium abundance from Sc II (1)log(Sun)floatnullable[TiI/H]? Titanium abundance from Ti I (1)log(Sun)floatnullable[VI/H]? Vanadium abundance from V I (1)log(Sun)floatnullable[CrI/H]? Chromium abundance from Cr I (1)log(Sun)floatnullable[FeII/H]? Iron abundance from Fe II (1)log(Sun)floatnullable[NiI/H]? Nickel abundance from Ni I (1)log(Sun)floatnullable[BaII/H]? Barium abundance from Ba II (1)log(Sun)floatnullable[alpha/H]? {alpha} element abundance (1)(3)log(Sun)floatnullable[alpha'/H]? {alpha}' element abundance (1)(4)log(Sun)floatnullable