par Sbordone, Luca;Bonifacio, Piercarlo;Caffau, Elisabetta;Ludwig, Hans Günter;Behara, Natalie Thérèse 
;Van't Veer, C;Molaro, Paolo;Plez, Bertrand;Sivarani, Thirupathi;Spite, Monique;Spite, François;Beers, Timothy C.;Christlieb, Norbert;Francois, Patrick;Hill, Vanessa
Editeur scientifique Charbonnel, Corinne;Tosi, Monica;Primas, Francesca;Chiappini, Cristina
Référence Light Elements in the Universe(9-13 November, 2009: Geneva), Light Elements in the Universe, Cambridge University Press, Cambridge, page (355-356)
Publication Publié, 2010-04
;Van't Veer, C;Molaro, Paolo;Plez, Bertrand;Sivarani, Thirupathi;Spite, Monique;Spite, François;Beers, Timothy C.;Christlieb, Norbert;Francois, Patrick;Hill, VanessaEditeur scientifique Charbonnel, Corinne;Tosi, Monica;Primas, Francesca;Chiappini, Cristina
Référence Light Elements in the Universe(9-13 November, 2009: Geneva), Light Elements in the Universe, Cambridge University Press, Cambridge, page (355-356)
Publication Publié, 2010-04
Publication dans des actes
| Résumé : | We recently presented (Sbordone et al., 2009a) the largest sample to date of lithium abundances in extremely metal-poor (EMP) Halo dwarf and Turn-Off (TO) stars. One of the most crucial aspects in estimating Li abundances is the Teff determination, since the Li I 670.8 nm doublet is highly temperature sensitive. In this short contribution we concentrate on the Teff determination based on Halpha wings fitting, and on its sensitivity to the chosen stellar gravity. |
