Abstract
We showed in previous works that a periodic pattern could be found in the frequency set of δ Sct stars observed by CoRoT. We related that pattern with a value of the large separation. However, are these stars particular cases? We present here preliminary results of our work aimed at answering this and related questions. We looked for periodicities in the frequency spectrum of a sub-sample of 153 δ Sct pulsators observed by Kepler. We have determined that ∼ 50% of the sub-sample shows a clear pattern. Moreover, we found three objects with almost the same KIC physical parameters showing the same value of the pattern. We suggest that the pattern is a sign of a large-separation-like structure.
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Notes
- 1.
We adopted the values of Teff and logg from the Kepler Input Catalog.
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Acknowledgements
Funding for the Kepler mission is provided by NASA’s Science Mission Directorate. We thank the Kepler team for the development and operations of this outstanding mission. K.U. acknowledges financial support by the Spanish National Plan of R&D for 2010, project AYA2010-17803. A.M. acknowledges the funding of AstroMadrid (CAM S2009/ESP-1496); this research was funded by the Spanish grants ESP2007-65475-C02-02, AYA 2010-21161-C02-02.
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Hernández, A.G. et al. (2013). Periodicities Within the Frequency Spectra of δ Scuti Stars Observed by Kepler . In: Suárez, J., Garrido, R., Balona, L., Christensen-Dalsgaard, J. (eds) Stellar Pulsations. Astrophysics and Space Science Proceedings, vol 31. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29630-7_12
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DOI: https://doi.org/10.1007/978-3-642-29630-7_12
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