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7Li in Metal-Poor Stars: The Spread of the Li Plateau
Symposium - International astronomical union
A highly homogeneous study of 23 halo field dwarf stars has achieved a Li abundance accuracy of 0.033 dex per star. The work shows that the intrinsic spread of the Li abundances of these starsat a given metallicityis < 0.02 dex, and consistent with zero. That is, the Spite Li plateau for halo field dwarfs is incredibly thin. The thinness rules out depletion by more than 0.1 dex by a rotational-induced extra-mixing mechanism. Despite the thinness of the plateau, an increase of Li with [Fe/H]doi:10.1017/s0074180900166689 fatcat:2jh5xll65raqfo5wnr3izn7zxa