Abstract
Since about thirty years it is known that Oxygen and other α-elementsare overabundant in metal-poor stars. In this talk I briefly review thehistorical and theoretical background, discuss reliability of presentabundance determinations for O, and finally comment about the implicationsrelevant to galactic chemical evolution.
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Gratton, R. O and α-Element Abundances in Metal-Poor Stars. Astrophysics and Space Science 265, 157–164 (1999). https://doi.org/10.1023/A:1002178620131
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DOI: https://doi.org/10.1023/A:1002178620131