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Signatures of intrinsic Li depletion and Li-Na anti-correlation in the metal-poor globular cluster NGC 6397

Lind, K; Primas, Francesca; Charbonnel, C; Grundahl, Frank; Asplund, Martin


Context. To alleviate the discrepancy between the prediction of the primordial lithium abundance in the universe and the abundances observed in Pop II dwarfs and subgiant stars, it has been suggested that the stars observable today have undergone photospheric depletion of lithium. Aims. To identify the cause of this depletion, it is important to accurately establish the behaviour of lithium abundance with effective temperature and evolutionary phase. Stars in globular clusters are ideal objects...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/200912524


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