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The Influence of Atomic Diffusion on Stellar Ages and Chemical Tagging

Dotter, Aaron; Conroy, Charlie; Cargile, Phillip A.; Asplund, Martin


In the era of large stellar spectroscopic surveys, there is an emphasis on deriving not only stellar abundances but also the ages for millions of stars. In the context of Galactic archeology, stellar ages provide a direct probe of the formation history of the Galaxy. We use the stellar evolution code MESA to compute models with atomic diffusion - with and without radiative acceleration - and extra mixing in the surface layers. The extra mixing consists of both density-dependent turbulent mixing...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aa6d10


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