Reference : Theoretical instability strips for delta Scuti and gamma Doradus stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/75417
Theoretical instability strips for delta Scuti and gamma Doradus stars
English
Dupret, Marc-Antoine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
Grigahcène, A. [Instituto de Astrofísica de Andalucía-CSIC, Apartado 3004, 18080 Granada, Spain]
Garrido, R. [Instituto de Astrofísica de Andalucía-CSIC, Apartado 3004, 18080 Granada, Spain]
Gabriel, Maurice [> > Département d'astrophys., géophysique et océanographie (AGO) >]
Scuflaire, Richard [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
1-Jan-2004
Astronomy and Astrophysics
EDP Sciences
414
L17-L20
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] stars: oscillations ; stars: interiors ; stars: variables: general
[en] New theoretical instability strips for delta Sct and gamma Dor stars are presented. These results have been obtained taking into account the perturbation of the convective flux following the treatment of Gabriel (\cite{Gabriel1996}). For the first time, the red edge of the delta Sct instability strip for non-radial modes is obtained. The influence of this time-dependent convection (TDC) on the driving of the gamma Dor gravity modes is investigated. The results obtained for different values of the mixing-length parameter alpha are compared for the gamma Dor models. A good agreement with observations is found for models with alpha between 1.8 and 2.0.
http://hdl.handle.net/2268/75417
10.1051/0004-6361:20031740
http://adsabs.harvard.edu/abs/2004A%26A...414L..17D

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Dupret-ISletter-aa2004.pdfPublisher postprint357.58 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.