Reference : Towards Precise Asteroseismology of Solar-Like Stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/140165
Towards Precise Asteroseismology of Solar-Like Stars
English
Grigahcène, A. [Centro de Astrofísica da Universidade do Porto]
Dupret, Marc-Antoine mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Sousa, S. G. [Centro de Astrofísica da Universidade do Porto]
Monteiro, M. J. P. F. G. [Centro de Astrofísica da Universidade do Porto; Departamento de Física e Astronomia, Faculdade de Ciências da Universidade do Porto]
Garrido, R. [Instituto de Astrofísica de Andalucía, CSIC]
Scuflaire, Richard mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
Gabriel, M. [Institut d'Astrophysique et de Géophysique, Université de Liège)]
Garrido, R. [> >]
Balona, L. A. [> >]
Christensen-Dalsgaard, J. [> >]
2013
Astrophysics and Space Science Proceedings series
31
209
No
International
[en] Physics
[en] Adiabatic modeling of solar-like oscillations cannot exceed a certain level of precision for fitting individual frequencies. This is known as the problem of near-surface effects on the mode physics. We present a theoretical study which addresses the problem of frequency precision in non-adiabatic models using a time-dependent convection treatment. We find that the number of acceptable model solutions is significantly reduced and more precise constraints can be imposed on the models. Results obtained for a specific star (β Hydri) lead to very good agreement with both global and local seismic observables. This indicates that the accuracy of model fitting to seismic data is greatly improved when a more complete description of the interaction between convection and pulsation is taken into account.
http://hdl.handle.net/2268/140165
10.1007/978-3-642-29630-7_39
http://adsabs.harvard.edu/abs/2013ASSP...31..209G
http://de.arxiv.org/abs/1112.5961
31

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