New progress in the study of stellar lithium abundance.

Astronomy and Astrophysics – Astronomy

Scientific paper

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Lithium: Stars

Scientific paper

Lithium is one of the few nuclei which are synthesized during the Big Bang, the abundances of which are of importance for our understanding of many problems, ranging for primordial nucleosynthesis, to the chemical evolution of our Galaxy. The authors summarize the recent observational results of lithium abundance in solar-like stars, halo stars, pre-main sequence stars and stars in clusters. They also present non LTE effects on analysing lithium abundance and some lithium depletion mechanisms. Both supernovae and massive AGB are the main sources of lithium production in stars. The available depletion mechanisms, such as mass loss, convective overshooting, microscopic diffusion and rotational mixing, can only explain part of the observations.

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