J/A+A/570/A22ivo://CDS.VizieR/J/A+A/570/A22doi:10.26093/cds/vizier.35700022CDSTrevisan M.Barbuy B.2017-12-18T07:57:04Z2014-10-09T11:05:52ZCDS support team

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

cds-question@unistra.frchemical-abundanceslate-type-starsWe studied a sample of high proper motion, old and metal-rich dwarf stars, selected from the NLTT catalogue. The low pericentric distances and eccentric orbits of these solar neighbourhood stars indicate that they might have originated in the inner parts of the Galaxy. Chemical tagging can probe the formation history of stellar populations. To identify the origin of a sample of 71 very metal-rich dwarf stars, we derive the abundances of the neutron-capture elements Y, Ba, La, and Eu. The abundances of Y, La, Ba, and Eu vs. Fe, O, and Mg as reference elements, as well as their kinematics, suggest that our sample of old metal-rich dwarf stars is clearly distinct from the thin disk. They could be old inner thin-disk stars, as suggested previously, or bulge stars. In either cases they would have migrated from the inner parts of the Galaxy to the solar neighbourhood.2014A&A...570A..22Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/570/A22CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/98 : NLTT Catalogue (Luyten, 1979)J/ApJ/637/1102 : Lick indices for metal-rich stars (Robinson+, 2006)J/ApJS/169/430 : Atmospheric param. of 1907 metal-rich stars (Robinson+, 2007)J/A+A/535/A42 : Metal rich stars in solar neighbourhood (Trevisan+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/570/A22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/570/A22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/570/A22https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/570/A22https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/570/A22http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/570/A22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/570/A22/abunds (Stellar abundances in Fe, Y, Ba, La, Eu.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/570/A22/abunds?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/570/A22/abunds?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/570/A22/abunds?GETtext/xml+votable180.050000true141.42675-6.77205560.0055555555555555566/12464 16520 17011 17301 17453 17991 18591 18661 18747 19396 20512 20640 21117 22967 23159 23560 25322 26651 26745 26788 27403 28894 29848 29852 29881 30219 30665 31145 31500 33236 33243 33311 33518 33571 33991 34306 34739 35128 35581 35668 35839 36012 36374 36492 37947 38508 38763 39591 40143 40302 40375 40442 40822 41468 41721 42411 42776 43044 43650 45376 45445 45717 45974 46203 46536 46953 47247 48553 48764 49036https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/570/A22?format=asciiOpticaldefaultJ/A+A/570/A22/abundsStellar abundances in Fe, Y, Ba, La, Eu.NameStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[Fe/H]Abundance of Fe (1)log(Sun)phys.abund.Fefloate_[Fe/H]Error in abundance of Felog(Sun)stat.error;phys.abund.Fefloat[Y/Fe]Y-to-Fe abundance ratio (1)log(Sun)phys.abundfloate_[Y/Fe]? Error in the Y-to-Fe ratiolog(Sun)stat.error;phys.abundfloatnullable[Ba/Fe]Ba-to-Fe abundance ratio (1)log(Sun)phys.abundfloate_[Ba/Fe]Error in the Ba-to-Fe ratiolog(Sun)stat.error;phys.abundfloat[La/Fe]La-to-Fe abundance ratio (1)log(Sun)phys.abundfloate_[La/Fe]? Error in the La-to-Fe ratiolog(Sun)stat.error;phys.abundfloatnullable[Eu/Fe]? Eu-to-Fe abundance ratio (1)log(Sun)phys.abundfloatnullablee_[Eu/Fe]? Error in the Eu-to-Fe ratiolog(Sun)stat.error;phys.abundfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.main