Asteroseismic analysis of the CoRoT delta Scuti star HD 174936
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| Titre | Asteroseismic analysis of the CoRoT delta Scuti star HD 174936 |
| Type de publication | Journal Article |
| Year of Publication | 2009 |
| Auteurs | Hernandez, AG, Moya, A, Michel, E, Garrido, R, Suarez, JC, Rodriguez, E, Amado, PJ, Martin-Ruiz, S, Rolland, A, Poretti, E, Samadi, R, Baglin, A, Auvergne, M, Catala, C, Lefevre, L, Baudin, F |
| Journal | Astronomy & Astrophysics |
| Volume | 506 |
| Pagination | 79-83 |
| Date Published | Oct |
| ISBN Number | 0004-6361 |
| Numéro d'accès | WOS:000271052700010 |
| Résumé | We present an analysis of the delta-Scuti star HD 174936 (ID7613) 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 mu Hz. 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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