Reference : Pulsations of rapidly rotating evolved stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/140152
Pulsations of rapidly rotating evolved stars
English
Ouazzani, Rhita-Maria mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Roxburgh, I. W. [> >]
Dupret, Marc-Antoine mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
1-Jan-2012
proceedings of the 20th Stellar Pulsation Conference Series, Granada sept 2011
1301
2496
No
International
[en] Astrophysics - Solar and Stellar Astrophysics
[en] A new two dimensional non-perturbative code to compute accurate oscillation modes of rapidly rotating stars is presented. The 2D calculations fully take into account the centrifugal distorsion of the star while the non perturbative method includes the full influence of the Coriolis acceleration. This 2D non-perturbative code is used to study pulsational spectra of highly distorted evolved models of stars. 2D models of stars are obtained by a self consistent method which distorts spherically averaged stellar models a posteriori. We are also able to compute gravito-acoustic modes for the first time in rapidly rotating stars. We present the dynamics of pulsation modes in such models, and show regularities in their frequency spectra.
http://hdl.handle.net/2268/140152
http://adsabs.harvard.edu/abs/2013arXiv1301.2496O
5 pages, 3 figures, proceedings of the 20th Stellar Pulsation Conference Series, Granada sept 2011

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