Unpublished conference/Abstract (Scientific congresses and symposiums)
Energetical aspects of solar-like oscillations in red giants
Grosjean, Mathieu; Dupret, Marc-Antoine
2013IAU symposium 301 : Precision Asteroseismology. Celebration of the scientific opus of Wojtek Dziembowdki
 

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Keywords :
Astreroseismology; Red giants; Solar-like oscillation
Abstract :
[en] CoRoT and Kepler observations of red giants reveal a large variety of spectra of non- radial solar- like oscillations. Up to now we understood pretty well the frequency patterns for the different global properties or different evolutionary stages of the stars. Here we are interested in the theoretical predictions for the two other components of a power spectra (the linewitdths and the heights). The study of energetic aspects of these oscillations is of great importance to predict the peak parameters in the power spectrum. I will discuss under which circumstances mixed modes are detectable for a large variety of red-giant stellar models, with emphasis on the effect of the evolutionary status of the star along the red-giant branch, for a wide range of stellar masses (from 1 to 2M⊙ ) on theoretical power spectra.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Grosjean, Mathieu ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Language :
English
Title :
Energetical aspects of solar-like oscillations in red giants
Publication date :
23 August 2013
Event name :
IAU symposium 301 : Precision Asteroseismology. Celebration of the scientific opus of Wojtek Dziembowdki
Event date :
du 19 août 2013 au 23 août 2013
Audience :
International
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Available on ORBi :
since 30 September 2013

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