Article (Scientific journals)
Two-scale mass-flux closure models for turbulence: p-mode amplitudes in solar-like stars
Belkacem, Kevin; Samadi, R.; Goupil, Marie-José et al.
2007In Communications in Asteroseismology, 150, p. 153
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Abstract :
[en] A new closure model has been developed, which takes into account both the skewness of the velocity distribution induced by the presence of two flows in the convection zone, and the effects of turbulence onto each flow (Belkacem et al. 2006a). Applied to the formalism of p-mode excitation, it has been possible to validate this theoretical model by a comparison with the observational excitation rates in the solar case using GOLF data (see Belkacem et al. 2006b). The next step is to consider alpha Cen A for which observations of the mode-damping rates are available.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Belkacem, Kevin ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)
Samadi, R.
Goupil, Marie-José
Kupka, F.
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique
Language :
English
Title :
Two-scale mass-flux closure models for turbulence: p-mode amplitudes in solar-like stars
Publication date :
01 June 2007
Journal title :
Communications in Asteroseismology
ISSN :
1021-2043
eISSN :
2224-8374
Publisher :
Verlag der Österreichischen Akademie der Wissenschaften, Wien, Austria
Volume :
150
Pages :
153
Peer reviewed :
Peer reviewed
Available on ORBi :
since 10 November 2010

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