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

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

2007-03-15

arxiv.org/abs/astro-ph/0703426v1

Astronomy and Astrophysics

Astrophysics

to appear in "Stellar Evolution and Seismic Tools for Asteroseismology", (Eds) C. W. Straka, Y. Lebreton and M. J. P. F. G.

Scientific paper

10.1051/eas:2007134

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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