First stars VII - Lithium in extremely metal poor dwarfs
- P. Bonifacio
- P. Molaro
- T. Sivarani
- R. Cayrel
- M. Spite
- F. Spite
- B. Plez
- J. Andersen
- B. Barbuy
- T. C. Beers
- E. Depagne
- V. Hill
- P. François
- B. Nordström
- F. Primas
DOIAbstract
Context.The primordial lithium abundance is a key prediction of models of big bang nucleosynthesis, and its abundance in metal-poor dwarfs (the Spite plateau) is an important, independent observational constraint on such models. Aims.This study aims to determine the level and constancy of the Spite plateau as definitively as possible from homogeneous high-quality VLT-UVES spectra of 19 of the most metal-poor dwarf stars known. Methods.Our high-resolution ($R\sim 43\,000$), high $S/N$ spectra are analysed with OSMARC
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