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

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

2007-10-25

arxiv.org/abs/0710.4871v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, hot subdwarf stars and related objects conference proceedings

Scientific paper

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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