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Atmosphere models and the determination of stellar parameters

Published online by Cambridge University Press:  14 November 2014

F. Martins
F. Martins*
Affiliation:
LUPM, Université Montpellier 2, CNRS, Place Eugène Bataillon, 34095 Montpellier, France
*
e-mail: fabrice.martins@univ-montp2.fr
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Abstract

We present the basic concepts necessary to build atmosphere models for any type of star. We then illustrate how atmosphere models can be used to determine stellar parameters. We focus on the effects of line-blanketing for hot stars, and on non-LTE and three dimensional effects for cool stars. We illustrate the impact of these effects on the determination of the ages of stars from the HR diagram.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 65: The Ages of Stars , 2014 , pp. 75 - 98
Copyright
© EAS, EDP Sciences, 2014

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