Reference : Seismic Diagnostics of Red Giants: First Comparison with Stellar Models
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/130368
Seismic Diagnostics of Red Giants: First Comparison with Stellar Models
English
Montalban Iglesias, Josefa mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Miglio, Andrea mailto [Institut d'Astrophysique et Géophysique de l'Université de Liège, Allée du six Août, 17 B-4000 Liège, Belgium; Chargé de Recherches of the Fonds de la Recherche Scientifique, FNRS, rue d'Egmont 5, B-1000 Bruxelles, Belgium.]
Noels-Grötsch, Arlette mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
Scuflaire, Richard mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
Ventura, P. [Osservatorio Astronomico di Roma-INAF, via Frascati 33, Monteporzio Catone, Rome, Italy)]
1-Oct-2010
Astrophysical Journal Letters
IOP Publishing
721
L182-L188
Yes (verified by ORBi)
International
2041-8205
2041-8213
Bristol
United Kingdom
[en] stars: evolution ; stars: interiors ; stars: late-type ; stars: oscillations
[en] The clear detection with CoRoT and KEPLER of radial and non-radial solar-like oscillations in many red giants paves the way for seismic inferences on the structure of such stars. We present an overview of the properties of the adiabatic frequencies and frequency separations of radial and non-radial oscillation modes for an extended grid of models. We highlight how their detection allows a deeper insight into the internal structure and evolutionary state of red giants. In particular, we find that the properties of dipole modes constitute a promising seismic diagnostic tool of the evolutionary state of red giant stars. We compare our theoretical predictions with the first 34 days of KEPLER data and predict the frequency diagram expected for red giants in the CoRoT exofield in the galactic center direction.
http://hdl.handle.net/2268/130368
10.1088/2041-8205/721/2/L182
http://adsabs.harvard.edu/abs/2010ApJ...721L.182M
http://de.arxiv.org/abs/1009.1754

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