Stars: oscillations; Overshooting; Metallicity; Stars: interior; Stars: variables: general
Abstract :
[en] Computations of theoretical instability strips (IS) for delta Scuti (Sct) and gamma Dor (Dor) stars are presented. The Time-Dependent Convection (TDC) theory of Gabriel (1996) and Grigahcène et al. (2005) is adopted in our models. We are able to obtain the delta Sct and gamma Dor IS. We present a prospective study on the influence of the overshooting and metallicity on the location of these IS in the HR diagram.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Grigahcène, A.; Algiers Observatory, CRAAG, Algiers, Algeria ; Instituto de Astrofísica de Andalucía-CSIC, Granada, Spain
Dupret, Marc-Antoine ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique
Garrido, R.; Instituto de Astrofísica de Andalucía-CSIC, Granada, Spain
Gabriel, Maurice ; Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
Influence of overshooting and metallicity on the delta Scuti and gamma Doradus instability strips
