Light element evolution resulting from WMAP data
نویسندگان
چکیده
The recent determination of the baryon-to-photon ratio from WMAP data by Spergel et al. (2003) allows one to fix with unprecedented precision the primordial abundances of the light elements D, He, He and Li in the framework of the standard model of big bang nucleosynthesis. We adopt these primordial abundances and discuss the implications for Galactic chemical evolution, stellar evolution and nucleosynthesis of the light elements. The model predictions on D, He and He are in excellent agreement with the available data, while a significant depletion of Li in low-metallicity stars is required to reproduce the Spite plateau.
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