Lithium abundances and Li-7/Li-6 ratios in late-type population I field dwarfs

Rebolo, R.; Beckman, J. E.; Crivellari, L.; Castelli, F.; Foing, B.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 166, no. 1-2, Sept. 1986, p. 195-203. Research supported by the Consejo Superior de Investigaciones Cientificas and CNR.

Fecha de publicación:
9
1986
Número de autores
5
Número de autores del IAC
2
Número de citas
21
Número de citas referidas
20
Descripción
Using the Coudé Echelle Spectrograph fed by the 1.4 m Coudé Auxiliary Telescope at ESO, La Silla, the authors have obtained a sequence of fourteen high resolution (λ/Δλ = 105) spectra at high signal to noise ratio, of main sequence and near main sequence objects in the wavelength range containing the 6708 Å resonance doublet of lithium. Using Kurucz thermal equilibrium model atmospheres, and relying on the excellent signal to noise ratios in the spectra, they were able to assess not only the 7Li components, but also the weaker 6Li components of the blended doublet.