J/A+A/449/127ivo://CDS.VizieR/J/A+A/449/127doi:10.26093/cds/vizier.34490127CDSZhang H.W.Zhao G.2017-12-22T05:33:25Z2006-06-08T21:45:41ZCDS support team

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

cds-question@unistra.frdwarf-starschemically-peculiar-starsWe present photospheric abundances of the O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Ni, and Ba elements for 32 mildly metal-poor stars with [Fe/H]~-0.7. High resolution and high signal-to-noise ratio spectra were obtained with the Coude Echelle Spectrograph mounted on the 2.16m telescope at the National Astronomical Observatories (Xinglong, China) on 10 nights during 1999. Effective temperatures were estimated from colour indices, and surface gravities from Hipparcos parallaxes. Stellar abundances were determined from a differential LTE analysis. Our element abundance results extend and confirm previous works. The oxygen and other alpha-elements (Mg, Si, Ca, and Ti) abundances of thin and thick disk stars show distinct trends at [Fe/H]<-0.60. The [Al/Fe] behaviour is exactly as an alpha-element, although the separation for [Na/Fe] of thin and thick disk stars is not clear. The elements V, Cr, and Ni follow Fe very closely, and there is no offset between thin and thick disk stars, but the Sc and Mn abundance trends of the thin and thick disk stars are different, and [Ba/Fe] of thin disk and thick disk stars shows different behaviour.2006A&A...449..127Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/449/127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/440/321 : Chemical abundances in 43 metal-poor stars (Jonsell+, 2005)J/A+A/425/671 : Equivalent widths of 10 metal-poor halo stars (Bai+, 2004)J/A+A/404/187 : Equivalent widths for metal-poor stars (Gratton+, 2003)J/A+A/403/1105 : Extremely metal-poor giants equivalent widths (Francois+ 2003)J/A+A/390/235 : OI & FeII equivalent widths in metal-poor stars (Nissen+ 2002)J/A+A/354/169 : Metal-poor field stars abundances (Gratton+, 2000)J/A+A/305/245 : Fe I in metal-poor stars (Magain+, 1996)J/A+A/290/885 : Abundances of very metal-poor stars (Primas+, 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/449/127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/449/127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/449/127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/449/127https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/449/127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/449/127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/449/127/stars (Star positions and magnitudes (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/449/127/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/449/127/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/449/127/stars?GETtext/xml+votable180.050000true32.60208329.8066670.0055555555555555566/1242 2133 2637 2771 3085 3913 6539 6648 6761 7141 10886 11177 12295 12424 12451 13075 13474 14151 17136 19179 19217 19312 21696 22527 23096 25444 27975 28336 28593 29765 31172 40716https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/449/127?format=asciiOpticaldefaultJ/A+A/449/127/starsStar positions and magnitudes (from Simbad)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainBmagB magnitudemagphot.mag;em.opt.BfloatVmagV magnitudemagphot.mag;em.opt.VfloatSpTypeMK spectral typesrc.spTypecharSimbadSimbad column added by the CDScharJ/A+A/449/127/table1Equivalent widths dataElElementphys.atmol.elementcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharLambdaWavelength0.1nmem.wldoubleIonIonisationphys.atmol.ionStage;phys.atmol.ionizationcharLEPLower excitation potentialeVphys.atmol.excitation;stat.minfloatloggflog of oscillator strengthphys.atmol.oscStrengthfloatEgammaCorrection factor to Unsoeld broadeninginstr.paramfloatEW? Equivalent width0.1pmspect.line.eqWidthfloatnullableJ/A+A/449/127/table3AbundancesNameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[Fe/H]Abundance [Fe/H]log(Sun)phys.abundfloat[O/Fe]Abundance [O/Fe]log(Sun)phys.abundfloat[Mg/Fe]Abundance [Mg/Fe]log(Sun)phys.abundfloat[Si/Fe]Abundance [Si/Fe]log(Sun)phys.abundfloat[Ca/Fe]Abundance [Ca/Fe]log(Sun)phys.abundfloat[Ti/Fe]? Abundance [Ti/Fe]log(Sun)phys.abundfloatnullable[Na/Fe]? Abundance [Na/Fe]log(Sun)phys.abundfloatnullable[Al/Fe]? Abundance [Al/Fe]log(Sun)phys.abundfloatnullable[Sc/Fe]? Abundance [Sc/Fe]log(Sun)phys.abundfloatnullable[V/Fe]? Abundance [V/Fe]log(Sun)phys.abundfloatnullable[Cr/Fe]? Abundance [Cr/Fe]log(Sun)phys.abundfloatnullable[Mn/Fe]? Abundance [Mn/Fe]log(Sun)phys.abundfloatnullable[Ni/Fe]? Abundance [Ni/Fe]log(Sun)phys.abundfloatnullable[Ba/Fe]Abundance [Ba/Fe]log(Sun)phys.abundfloat