• Title of article

    Lithium abundances in Bulge-like SMR stars

  • Author/Authors

    Beatriz Barbuy، نويسنده , , M. Trevisan، نويسنده , , B. Gustafsson، نويسنده , , K. Eriksson، نويسنده , , M. Grenon ، نويسنده , , B. Gustafsson and L. Pompeia، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2009
  • Pages
    2
  • From page
    325
  • To page
    326
  • Abstract
    We analyze a sample of 21 super-metal-rich (SMR) stars, using high-resolution echelle spectra obtained with the FEROS Spectrograph at the 1.5m ESO telescope. The metallicities are in the range 0.15 < [Fe/H] < 0.5, 3 of them in common with Pompeia et al. (2002). Geneva photometry, astrometric data from Hipparcos, and radial velocities from CORAVEL are available for these stars. The peculiar kinematics suggests the thin disk close to the bulge as the probable birthplace of these stars (Grenon 1999). From Hipparcos data, it appears that the turnoff of this population indicates an age of 10-11 Gyr (Grenon 1999). Detailed analysis of the sample stars is carried out. Lithium abundances of these stars were derived, and their behaviour with effective temperature is shown.
  • Keywords
    stars: abundances , Formation , Galaxy: formation
  • Journal title
    Proceedings of the International Astronomical Union
  • Serial Year
    2009
  • Journal title
    Proceedings of the International Astronomical Union
  • Record number

    675133