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The Solar Twin Planet Search III. The [Y/Mg] clock: estimating stellar ages of solar-type stars

Tucci Maia, M.; Ramírez, I.; Meléndez, J.; Bedell, M.; Bean, J. L.; Asplund, M.


Context. Solar twins are stars with similar stellar (surface) parameters to the Sun that can have a wide range of ages. This provides an opportunity to analyze the variation of their chemical abundances with age. Nissen (2015, A&A, 579, A52) recently suggested that the abundances of the s-process element Y and the α-element Mg could be used to estimate stellar ages. Aims. This paper aims to determine with high precision the Y, Mg, and Fe abundances for a sample of 88 solar twins that span a...[Show more]

CollectionsANU Research Publications
Date published: 2016-04-20
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201527848
Access Rights: Open Access


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