Microscopic Diffusion in Stellar Evolution Codes: First Comparisons Results of ESTA-Task 3

[en] 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.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Lebreton, Y.; Observatoire de Paris, GEPI, CNRS UMR 8111, Meudon, France

Montalban Iglesias, Josefa ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Christensen-Dalsgaard, J.; Institut for Fysik og Astronomi, Aarhus Universitet, Denmark

Théado, S.; Institut d'Astrophysique et de Géophysique, Université de Liège, Belgique

Hui-Bon-Hoa, A.; LATT, Observatoire de Midi-Pyrénées, CNRS UMR 5572, Toulouse, France

Monteiro, M. J. P. F. G.; Centro de Astrofísica da Universidade do Porto, Portugal and Departamento de Matemática Aplicada, Faculdade de Ciências da Univ ersidade do Porto, Portugal

Degl'Innocenti, S.; Dipartimento di Fisica, Università di Pisa, Italy

Marconi, M.; INAF-Osservatorio Astronomico di Capodimonte, Napoli, Italy

Morel, P.; Observatoire de la Côte d'Azur, Cassiopée, CNRS UMR 6202, Nice, France

Prada Moroni, P. G.; Dipartimento di Fisica, Università di Pisa, Italy

More authors (3 more)

Language :

English

Title :

Microscopic Diffusion in Stellar Evolution Codes: First Comparisons Results of ESTA-Task 3

Publication date :

2007

Main work title :

Stellar Evolution and Seismic Tools for Asteroseismology

Editor :

Straka, C.W.

Lebreton, Y.

Monteiro, M.J.P.F.G

Publisher :

Cambridge University Press, Cambridge, United Kingdom

Collection name :

EAS Publications Series; 26

Pages :

155-165

Additional URL :

http://adsabs.harvard.edu/abs/2007EAS....26..155L
http://de.arxiv.org/abs/astro-ph/0703426

Commentary :

Available on ORBi :

since 15 June 2020

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