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Comparisons for ESTA-Task3: CLES and CESAM

Published online by Cambridge University Press:  20 June 2007

C.W. Straka ,
Y. Lebreton ,
M.J.P.F.G. Monteiro ,
J. Montalbán ,
S. Théado  and
Y. Lebreton
J. Montalbán
Affiliation:
Institut d'Astrophysique et Geophysique, Université de Liège, Belgique
S. Théado
Affiliation:
Institut d'Astrophysique et Geophysique, Université de Liège, Belgique
Y. Lebreton
Affiliation:
Observatoire de Paris-Meudon, GEPI, France
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Abstract

We present the results of comparing three different implementations of the microscopic diffusion process in the stellar evolution codes CESAM and CLES. For each of these implementations we computed models of 1.0, 1.2 and 1.3 M๏. We analyse the differences in their internal structure at three selected evolutionary stages, as well as the variations of helium abundance and depth of the stellar convective envelope. The origin of these differences and their effects on the seismic properties of the models are also considered.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 26: Stellar Evolution and Seismic Tools for Asteroseismology - Diffusive Processes in Stars and Seismic Analysis , 2007 , pp. 167 - 176
Copyright
© EAS, EDP Sciences, 2007

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