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Comparisons between stellar models and reliability of the theoretical models

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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 μHz 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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Authors and Affiliations

  1. GEPI, Observatoire de Paris, CNRS, Université Paris Diderot, 5 Place Janssen, 92195, Meudon, France

    Yveline Lebreton

  2. IPR, Université de Rennes 1, 35042, Rennes, France

    Yveline Lebreton

  3. Institut d’Astrophysique et Géophysique, Université de Liège, 4000 Liege, Belgium

    Josefina Montalbán

Authors
  1. Yveline Lebreton
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  2. Josefina Montalbán
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Correspondence to Yveline Lebreton.

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Lebreton, Y., Montalbán, J. Comparisons between stellar models and reliability of the theoretical models. Astrophys Space Sci 328, 29–38 (2010). https://doi.org/10.1007/s10509-010-0314-1

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  • DOI: https://doi.org/10.1007/s10509-010-0314-1

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