Lithium abundance of solar-like stars Virtual Observatory Resource

Authors
  1. Lopez-Valdivia R.
  2. Hernandez-Aguila J.B.
  3. Bertone E.
  4. Chavez M.,Cruz-Saenz de Miera F.
  5. Amazo-Gomez E.M.
  6. Published by
    CDS
Abstract

We report on the determination of the lithium abundance [A(Li)] of 52 solar-like stars. For 41 objects the A(Li) here presented corresponds to the first measurement. We have measured the equivalent widths of the 6708 {AA} lithium feature in high-resolution spectroscopic images (R~80000), obtained at the Observatorio Astrofisico Guillermo Haro (Sonora, Mexico), as part of the first scientific observations of the revitalized Lunar and Planetary Laboratory (LPL) Echelle Spectrograph, now known as the Cananea High-resolution Spectrograph (CanHiS). Lithium abundances were derived with the Fortran code MOOG, using as fundamental input a set of atmospheric parameters recently obtained by our group. With the help of an additional small sample with previous A(Li) determinations, we demonstrate that our lithium abundances are in agreement, to within uncertainties, with other works. Two target objects stand out from the rest of the sample. The star BD+47 3218 (T_eff_=6050+/-52 K, A(Li)=1.86+/-0.07 dex) lies inside the so-called lithium desert in the A(Li)-T_eff_ plane. The other object, BD+28 4515, has an A(Li)=3.05+/-0.07 dex, which is the highest of our sample and compatible with the expected abundances of relatively young stars.

Keywords
  1. g-stars
  2. chemical-abundances
  3. stellar-spectral-types
  4. effective-temperature
  5. line-intensities
Bibliographic source Bibcode
2015MNRAS.451.4368L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/451/4368
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/451/4368

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/451/4368
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https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/451/4368/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/451/4368/table1?

History

2019-12-16T08:35:26Z
Resource record created
2019-12-16T08:35:26Z
Created
2019-12-17T13:11:40Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr