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Solar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars
Samadi, R.; Belkacem, Kevin; Goupil, M*-J et al.
2007In IAU Symposium
 

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Abstract :
[en] Excitation of solar-like oscillations is attributed to turbulent convection and takes place at the upper-most part of the outer convective zones. Amplitudes of these oscillations depend on the efficiency of the excitation processes as well as on the properties of turbulent convection. We present past and recent improvements on the modeling of those processes. We show how the mode amplitudes and mode line-widths can bring information about the turbulence in the specific cases of the Sun and Alpha Cen A.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Samadi, R.
Belkacem, Kevin ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)
Goupil, M*-J
Kupka, F.
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique
Language :
English
Title :
Solar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars
Publication date :
01 May 2007
By request :
Yes
Audience :
International
Main work title :
IAU Symposium
Pages :
349-357
Commentary :
239 http://de.arxiv.org/abs/astro-ph/0611760
Available on ORBi :
since 24 November 2010

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