Article (Scientific journals)
First unambiguous asteroseismologic modelling of a gamma Doradus star
Moya, A.; Grigahcene, A.; Suárez, J. C. et al.
2006In Memorie della Societa Astronomica Italiana, 77, p. 466
 

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Keywords :
Stars: gamma Dor; Stars: 9 Aurigae; Stars: Modeling
Abstract :
[en] An asteroseismologic model of the gamma Dor star 9 Aurigae is discussed in this work. This is the first time a complete asteroseismologic scheme for analyzing gamma Dor stars is applied. From standard photometric observations (at least three oscillation frequencies, a photometric error box in the HR diagram and multicolor photometric observations, in this case in the Strömgren system) we can reduce the possible theoretical models for this star, providing constraints to the stellar parameters as mass, overshooting, metallicity, MLT parameter alpha , Brunt-Väiälä integral (I[SUB]th[/SUB]), etc. Simultaneously, an estimate of the modal identification of the observed frequencies is also obtained. This can be possible by the application, for the first time, of a complete procedure where different theoretical and computational techniques, recently developed, are linked and compared with photometric observations. The Frequency Ratio Method (FRM) and the Time Dependent Convection (TDC) theory are the basis of this complete procedure.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Moya, A.;  Observatoire de Paris, LESIA, UMR 8109, 92195 Meudon, France
Grigahcene, A.;  CRAAG, Algiers Observatory BP 63 Bouzareah 16340, Algiers, Algeria
Suárez, J. C.;  Instituto de Astrofísica de Andalucía-CSIC, Granada CP. 3004, Spain
Martín-Ruiz, S.;  Instituto de Astrofísica de Andalucía-CSIC, Granada CP. 3004, Spain
Amado, P. J.;  European Southern Observatory, Alonso de Cordova 3107, Santiago 19, Chile
Dupret, Marc-Antoine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique
Garrido, R.;  Instituto de Astrofísica de Andalucía-CSIC, Granada CP. 3004, Spain
Rodríguez, E.;  Instituto de Astrofísica de Andalucía-CSIC, Granada CP. 3004, Spain
Language :
English
Title :
First unambiguous asteroseismologic modelling of a gamma Doradus star
Publication date :
2006
Journal title :
Memorie della Societa Astronomica Italiana
ISSN :
0037-8720
Publisher :
Societa Astronomica Italiana, Milano, Italy
Volume :
77
Pages :
466
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