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Article Dans Une Revue Astrophysics and Space Science Année : 2008

CoRoT/ESTA-TASK 1 and TASK 3 comparison of the internal structure and seismic properties of representative stellar models

Résumé

We compare stellar models produced by different stellar evolution codes for the CoRoT/ESTA project, comparing their global quantities, their physical structure, and their oscillation properties. We discuss the differences between models and identify the underlying reasons for these differences. The stellar models are representative of potential CoRoT targets. Overall we find very good agreement between the five different codes, but with some significant deviations. We find noticeable discrepancies (though still at the per cent level) that result from the handling of the equation of state, of the opacities and of the convective boundaries. The results of our work will be helpful in interpreting future asteroseismology results from CoRoT.

Dates et versions

hal-00725880 , version 1 (28-08-2012)

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Yveline Lebreton, Josefina Montalbán, Jørgen Christensen-Dalsgaard, Ian W. Roxburgh, Achim Weiss. CoRoT/ESTA-TASK 1 and TASK 3 comparison of the internal structure and seismic properties of representative stellar models. Astrophysics and Space Science, 2008, 316, pp.187-213. ⟨10.1007/s10509-008-9740-8⟩. ⟨hal-00725880⟩
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