Signature of main sequence internal structure in post-main sequence stars

Dupret, M.-A.; Godart, M.; Noels, A.; Lebreton, Y.
Bibliographical reference

"Communications in Asteroseismology, Vol.158, p. 239 Proceedings of "38th Liege International Astrophysical Colloquium: Evolution and Pulsation of Massive Stars on the Main Sequence and Close to it", held on July 7-11 2008, edited by Arlette Noels, Conny Aerts, Josefina Montalban, Andrea Miglio and Maryline Briquet."

Advertised on:
7
2009
Number of authors
4
IAC number of authors
0
Citations
5
Refereed citations
5
Description
Post Main Sequence (post MS) stars keep a trace of their past main sequence history. Typically, the presence or not of an Intermediate Convective Zone (ICZ) above the H-burning shell of massive stars critically depends on the details of the Main Sequence (MS) phase modeling (convection criterion, mass loss,~...). We show here how the excitation of g-modes in blue supergiant stars is closely related to this ICZ, allowing to constrain different associated physical processes.