Baryonic Density from Primordial Li

Details Baryonic Density from Primordial Li Baryonic Density from Primordial Li

1996-10-08

arxiv.org/abs/astro-ph/9610050v1

Astronomy and Astrophysics

Astrophysics

LaTeX, 5 pages, uses paspconf.sty and epsf.sty, will be published in "Dark and Visible Matter in Galaxies", Persic & Salucci e

Scientific paper

Lithium abundances in a selected sample of halo stars have been revised by using new accurate Teff. From 41 plateau stars we found no evidence for intrinsic dispersion, a tiny trend with Teff and no trend with [Fe/H]. These results argue against depletion by either stellar winds, diffusion or rotational mixing. Therefore the Li observed in PopII stars provides a reliable estimate of the baryonic density. A more detailed discussion can be found in Bonifacio & Molaro (1996).

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