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Stellar age revealed by chemical composition
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Journal Article
Stellar age revealed by chemical composition
2021
Overview
High-resolution spectroscopic surveys provide an extraordinary dataset on the processes of the formation and evolution of our galaxy, in which the determination of the ages of individual stars plays a major role. We present here a method for measuring stellar ages based on the carbon/nitrogen abundance ratio in stellar atmospheres. We apply this relationship to the disc of the Milky Way, finding a clear age difference between the thin and thick discs of our galaxy.
Publisher
Firenze University Press Università degli Studi di Firenze
Subject
