The metal–poor end of the Spite plateau: gravity sensitivity of the Hα wings fitting.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5332

Title:	The metal–poor end of the Spite plateau: gravity sensitivity of the Hα wings fitting.
Authors:	Sbordone, L Bonifacio, P Caffau, E Ludwig, H. -G Behara, N Gonzalez-Hernandez, J. I Steffen, M Cayrel, R Freytag, B Van't Veer, C Molaro, P Plez, B Sivarani, T Spite, M Spite, F Beers, T. C Christlieb, N François, P Hill, V
Keywords:	Nuclear reactions Nucleosynthesis – Galaxy Halo – stars Abundances, Population II
Issue Date:	Apr-2010
Publisher:	Cambridge University Press
Citation:	C. Charbonnel, M. Tosi, F. Primas & C. Chiappini, eds., Light Elements in the Universe, Proceedings IAU Symposium No. 268, 2009, pp. 355-356
Series/Report no.:	IAU Symposium and Colloquium Proceedings Series; Vol. 268
Abstract:	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 Hα wings fitting, and on its sensitivity to the chosen stellar gravity.
Description:	Restricted Access
URI:	http://hdl.handle.net/2248/5332
Appears in Collections:	IIAP Publications

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