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Communication Dans Un Congrès Année : 2008

CS 22876-032: The Most Metal-Poor Dwarfs. Abundances and 3D Effects

Résumé

Unevolved extremely metal-poor stars offer us a unique tool to infer knowledge of the first generation of stars. We have analysed UVES high-resolution spectra of the double-lined spectroscopic binary CS 22876-032 which comprises the two most metal-poor dwarfs currently known. In particular, we determine the oxygen (from OH lines in the near-UV) and lithium abundances taking into account 3D effects.
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hal-03743590 , version 1 (02-08-2022)

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J. I. González Hernández, Piercarlo Bonifacio, Hans-Günter Ludwig, Elisabetta Caffau, Monique Spite, et al.. CS 22876-032: The Most Metal-Poor Dwarfs. Abundances and 3D Effects. First Stars III, Jul 2007, Santa Fe (New Mexico), Mexico. pp.175-177. ⟨hal-03743590⟩
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