Bibcode
Ramirez, Ivan; Allende Prieto, Carlos; Lambert, David L.
Referencia bibliográfica
From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution, IAU Symposium Proceedings of the international Astronomical Union 228, Held in Paris, France, May 23-27, 2005. edited by Hill, V.; François, P.; Primas, F. Cambridge: Cambridge University Press, 2005., pp.271-272
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2005
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Descripción
Oxygen abundances for a large sample of dwarf and giant stars
kinematically selected to be part of the Galactic thin and thick disks
have been determined from a non-LTE analysis of the O I triplet lines at
777 nm. The abundance analysis was performed using the infrared flux
method temperature scale, trigonometric surface gravities, and accurate
atomic data. Within this framework, the ionization balance of iron lines
could not be satisfied and so we adopted the iron abundances from Fe II
lines only given that they are relatively less sensitive to changes in
the atmospheric parameters. We show the resulting [O/Fe] vs. [Fe/H]
relationship and briefly discuss its implications.