The metal-poor end of the Spite plateau
L. SbordoneCIFIST Marie Curie Excellence Team, FranceP. BonifacioCIFIST Marie Curie Excellence Team, FranceE. CaffauGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceH.‐G. LudwigCIFIST Marie Curie Excellence Team, FranceN. T. BeharaCIFIST Marie Curie Excellence Team, FranceJ. I. Gónzalez HernándezCIFIST Marie Curie Excellence Team, FranceM. SteffenAstrophysikalisches Institut Potsdam An der Sternwarte 16, 14482 Potsdam, GermanyR. CayrelGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceB. FreytagCentre de Recherche Astrophysique de Lyon, UMR 5574: Université de Lyon, École Normale Supérieure de Lyon, 46 allée d’Italie, 69364 Lyon Cedex 07, FranceC. van’t VeerGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceP. MolaroINAF – Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, 34143 Trieste, ItalyB. PlezUniversité Montpellier 2, CNRS, GRAAL, 34095 Montpellier, FranceT. SivaraniIndian Institute of Astrophysiscs, II Block, Koramangala, Bangalore 560 034, IndiaM. SpiteGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceF. SpiteGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceTimothy C. BeersDept. if Physics & Astronomy, and JINA: Joint Insrtitute for Nuclear Astrophysics, Michigan State University, E. Lansing, MI 48824, USAN. ChristliebZentrum für Astronomie der Universität Heidelberg, Landessternwarte, Königstuhl 12, 69117 Heidelberg, GermanyP. FrançoisGEPI, Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, 92190 Meudon, FranceV. HillCassiopée – Observatoire de la Côte d’Azur, Boulevard de l’Observatoire, BP 4229, 06304 Nice Cedex 4, France
2010en
ABI
Аннотация
Context. The primordial nature of the Spite plateau is at odds with the WMAP satellite measurements, implying a primordial Li production at least three times higher than observed. It has also been suggested that A(Li) might exhibit a positive correlation with metallicity below [Fe/H] ~ −2.5. Previous samples studied comprised few stars below [Fe/H] = −3.
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