How accurate are stellar ages based on stellar models ? I. The impact of stellar models uncertainties
Abstract
Among the various methods used to age-date stars, methods based on stellar model predictions are widely used, for nearly all kind of stars in large ranges of masses, chemical compositions and evolutionary stages. The precision and accuracy on the age determination depend on both the precision and number of observational constraints, and on our ability to correctly describe the stellar interior and evolution. The imperfect input physics of stellar models as well as the uncertainties on the initial chemical composition of stars are responsible for uncertainties in the age determination. We present an overview of the calculation of stellar models and discuss the impact on age of their numerous inputs.
Keywords
Cite
@article{arxiv.1410.5336,
title = {How accurate are stellar ages based on stellar models ? I. The impact of stellar models uncertainties},
author = {Yveline Lebreton and Marie-Jo Goupil and J. Montalban},
journal= {arXiv preprint arXiv:1410.5336},
year = {2015}
}
Comments
83 pages, 46 figures, contribution to the proceedings of the 13rd Evry Schatzman School on Stellar Astrophysics, "The Ages of Stars", Roscoff 2013, EAS Publications Series, eds. Y. Lebreton, D. Valls-Gabaud, C. Charbonnel