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arxiv: astro-ph/0703426 · v1 · submitted 2007-03-15 · 🌌 astro-ph

Microscopic Diffusion in Stellar Evolution Codes: First Comparison results of ESTA-Task~3

Y. Lebreton , J. Montalban , J. Christensen-Dalsgaard , S. Theado , A. Hui-Bon-Hoa , M. J. P. F. G. Monteiro , S. Degl'Innocenti , M. Marconi
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P. Morel P.G. Prada Moroni A. Weiss
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classification 🌌 astro-ph
keywords evolutioncodesdiffusionesta-taskmicroscopicresultsstellartools
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We present recent work undertaken by the Evolution and Seismic Tools Activity (ESTA) team of the CoRoT Seismology Working Group. The new ESTA-Task 3 aims at testing, comparing and optimising stellar evolution codes which include microscopic diffusion of the chemical elements resulting from pressure, temperature and concentration gradients. The results already obtained are globally satisfactory, but some differences between the different numerical tools appear that require further investigations.

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