[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
Weiss, A.; Max-Planck-Institut für Astrophysik, Garching bei München, Germany)
Alecian, G., 2007, these proceedings, EAS Publ. Ser
Burgers, J.M., (1969) B69], Flow Equations for Composite Gases, , New York: Academic Press
Chapman, S., Cowling, T.G., (1970) CC70], The mathematical theory of non-uniform gases, an account of the kinetic theory of viscosity, thermal conduction and diffusion in gases, , 3rd ed, Cambridge: University Press
Christensen-Dalsgaard, J., 2007, these proceedings, EAS Publ. Ser
Christensen-Dalsgaard, J., & Di Mauro, M.P., 2007, these proceedings, EAS Publ. Ser
Degl'Innocenti, S., Marconi, M., (2005) Joint ENEAS-CoRoT/ESTA Workshop, , http://www.astro.up.pt/corot/welcome/meetings/m4, Aarhus, Denmark at
Hui Bon Hoa, A., (2007) Joint HELAS/CoRoT Workshop, , http://www.astro.up.pt/investigacao/conferencias/hce2006, Porto, Portugal, at
Lebreton, Y., (2006) CoRoTWeek 10, CoRoT/ESTAMeeting, 6. , http://www.astro.up.pt/corot/welcome/meetings/m6, Nice, France, at
