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Title:
Comparisons between stellar models and reliability of the theoretical models
Authors:
Lebreton, Yveline; Montalbán, Josefina
Affiliation:
AA(GEPI, Observatoire de Paris, CNRS, Université Paris Diderot; IPR, Université de Rennes 1), AB(Institut d'Astrophysique et Géophysique, Université de Liège)
Publication:
Astrophysics and Space Science, Volume 328, Issue 1-2, pp. 29-38 (Ap&SS Homepage)
Publication Date:
07/2010
Origin:
SPRINGER
Keywords:
Stars: interiors stars, evolution stars, Oscillations methods: numerical
Abstract Copyright:
(c) 2010: Springer Science+Business Media B.V.
DOI:
10.1007/s10509-010-0314-1
Bibliographic Code:
2010Ap&SS.328...29L

Abstract

The high quality of the asteroseismic data provided by space missions such as CoRoT (Michel et al. in The CoRoT Mission, ESA Spec. Publ. vol. 1306, p. 39, 2006) or expected from new operating missions such as Kepler (Christensen-Dalsgaard et al. in Commun. Asteroseismol. 150:350, 2007) requires the capacity of stellar evolution codes to provide accurate models whose numerical precision is better than the expected observational errors (i.e. below 0.1 muHz on the frequencies in the case of CoRoT). We present a review of some thorough comparisons of stellar models produced by different evolution codes, involved in the CoRoT/ESTA activities (Monteiro in Evolution and Seismic Tools for Stellar Astrophysics, 2009). We examine the numerical aspects of the computations as well as the effects of different implementations of the same physics on the global quantities, physical structure and oscillations properties of the stellar models. We also discuss a few aspects of the input physics.
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