J/A+A/582/A74ivo://CDS.VizieR/J/A+A/582/A74doi:10.26093/cds/vizier.35820074CDSSpite M.Spite F.Caffau E.Bonifacio P.2015-10-13T10:18:36Z2015-10-13T10:18:06ZCDS support team

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

cds-question@unistra.frpopulation-ii-starschemical-abundancesThe lithium abundance in turnoff stars of the old population of our Galaxy is remarkably constant in the metallicity interval -2.8<[Fe/H]<-2.0, defining a plateau. The Li abundance of these turnoff stars is clearly lower than the abundance predicted by the primordial nucleosynthesis in the frame of the standard Big Bang nucleosynthesis. Different scenarios have been proposed for explaining this discrepancy, along with the very low scatter of the lithium abundance around the plateau. The recently identified very high velocity star, WISE.J0725.2351 appears to belong to the old Galactic population, and appears to be an extreme halo star on a bound, retrograde Galactic orbit. In this paper, we study the abundance ratios and, in particular the lithium abundance, in this star. The available spectra (ESO-Very Large Telescope) are analyzed and the abundances of Li, C, Na, Mg, Al, Si, Ca, Sc, Ti, Cr, Mn, Fe, Co, Ni, Sr and Ba are determined.2015A&A...582A..74Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/582/A74CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/582/A74https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/582/A74http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/582/A74https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/582/A74https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/582/A74http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/582/A74GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/582/A74/table2Line list and abundances (LTE computations) for WISE J072543.88-235119.7recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpecies identifiermeta.id;meta.maincharlambdaWavelengthnmem.wldoubleExcExcitation potential of the lower leveleVphys.atmol.excitation;phys.atmol.levelfloatloggfOscillator strengthphys.atmol.oscStrengthfloatlogAbdLog abundance in WISE J072543.88-235119.7phys.abundfloat