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arxiv: 0908.2601 · v1 · submitted 2009-08-18 · 🌌 astro-ph.SR

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Asteroseismic analysis of the CoRoT δ-Scuti star HD174936

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classification 🌌 astro-ph.SR
keywords analysiscorotdelta-scutifrequenciesnumberstaralthougharound
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We present an analysis of the \delta-Scuti star object HD 174936 (ID 7613) observed by CoRoT during the first short run SRc01 (27 days). A total number of 422 frequencies we are 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 of 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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