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Catalogue POP – Notice individuelle de publication

García Hernández A., Moya Andrés, Michel Eric, Garrido Rafael, Suárez Juan Carlos, Rodríguez E., Amado Pedro J., Martin-Ruiz Susana, Rolland A., Poretti Ennio, Samadi Davoud-Reza, Baglin Annie, Auvergne Michel, Catala Claude, Lefèvre Laure, Baudin Frederic

Asteroseismic analysis of the CoRoT delta Scuti star HD 174936

Astronomy and Astrophysics, 2009, vol. 506, pp. 79-83

Référence DOI : 10.1051/0004-6361/200911932
Référence ADS : 2009A&A...506...79G

Résumé :

We present an analysis of the delta-Scuti star HD 174936 (ID 7613) observed by CoRoT during the first short run SRc01 (27 days). A total number of 422 frequencies were extracted from the light curve using standard prewhitening techniques. This number of frequencies was obtained by considering a spectral significance limit of sig = 10 using the software package SigSpec. Our analysis of the oscillation frequency spectrum reveals a spacing periodicity around 52 muHz. Although modes considered here are not in the asymptotic regime, a comparison with stellar models confirms that this signature may stem from a quasi-periodic pattern similar to the so-called large separation in solar-like stars.

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