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

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

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dc.contributor.author	Sbordone, L
dc.contributor.author	Bonifacio, P
dc.contributor.author	Caffau, E
dc.contributor.author	Ludwig, H. -G
dc.contributor.author	Behara, N
dc.contributor.author	Gonzalez-Hernandez, J. I
dc.contributor.author	Steffen, M
dc.contributor.author	Cayrel, R
dc.contributor.author	Freytag, B
dc.contributor.author	Van't Veer, C
dc.contributor.author	Molaro, P
dc.contributor.author	Plez, B
dc.contributor.author	Sivarani, T
dc.contributor.author	Spite, M
dc.contributor.author	Spite, F
dc.contributor.author	Beers, T. C
dc.contributor.author	Christlieb, N
dc.contributor.author	François, P
dc.contributor.author	Hill, V
dc.date.accessioned	2011-02-02T10:11:26Z
dc.date.available	2011-02-02T10:11:26Z
dc.date.issued	2010-04
dc.identifier.citation	C. Charbonnel, M. Tosi, F. Primas & C. Chiappini, eds., Light Elements in the Universe, Proceedings IAU Symposium No. 268, 2009, pp. 355-356	en
dc.identifier.uri	http://hdl.handle.net/2248/5332
dc.description	Restricted Access	en
dc.description.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.	en
dc.language.iso	en	en
dc.publisher	Cambridge University Press	en
dc.relation.ispartofseries	IAU Symposium and Colloquium Proceedings Series; Vol. 268
dc.relation.uri	http://dx.doi.org/10.1017/S1743921310004448	en
dc.rights	© Cambridge University Press	en
dc.subject	Nuclear reactions	en
dc.subject	Nucleosynthesis – Galaxy	en
dc.subject	Halo – stars	en
dc.subject	Abundances, Population II	en
dc.title	The metal–poor end of the Spite plateau: gravity sensitivity of the Hα wings fitting.	en
dc.type	Article	en