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arXiv · 0710.4871

Light curve analysis of the hybrid sdB pulsators HS0702+6043 and HS2201+2610

R. Lutz·S. Schuh·R. Silvotti·S. Dreizler·E. M. Green·G. Fontaine·T. Stahn·S. D. Huegelmeyer·T. -O. Husser
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Abstract

We present the detection of low-amplitude, long-period g-modes in two individual sdBV stars which are known to be p-mode pulsators. Only few of these hybrid objects, showing both p- and g-modes, are known today. We resolve the g-mode domain in HS0702+6043 and add HS2201+2610 to the list of hybrid pulsators. To discover the low-amplitude g-modes, a filtering algorithm based on wavelet transformations was applied to denoise observational data.

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R. Lutz, S. Schuh, R. Silvotti, S. Dreizler, E. M. Green, G. Fontaine, T. Stahn, S. D. Huegelmeyer, T. -O. Husser. 2007-10-25. Light curve analysis of the hybrid sdB pulsators HS0702+6043 and HS2201+2610. https://arxiv.org/abs/0710.4871

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