Abstract:Abstract. We present Li abundances for 73 stars in the metallicity range -3.5 < [Fe/H] < -1.0 using improved IRFM temperatures with precise E(B-V) values obtained mostly from interstellar NaI D lines, and high-quality equivalent widths (σE W ∼ 3%). At all metallicities we uncover a fine-structure in the Li abundances of Spite plateau stars, which we trace to Li depletion that depends on both metallicity and mass. Models including atomic diffusion and turbulent mixing seem to reproduce the observed Li depletio… Show more
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