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Binarity and multiperiodicity in high-amplitude delta Scuti stars

A. Derekas·L. L. Kiss·B. Csak·J. Griffin·C. Lindstrom·Sz. Meszaros·P. Szekely·M. C. B. Ashley·T. R. Bedding
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Abstract

We present our first results for a sample of southern high-amplitude delta Scuti stars (HADS), based on a spectrophotometric survey started in 2003. For CY Aqr and AD CMi, we found very stable light and radial velocity curves; we confirmed the double-mode nature of ZZ Mic, BQ Ind and RY Lep. Finally, we detected gamma-velocity changes in RS Gru and RY Lep

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A. Derekas, L. L. Kiss, B. Csak, J. Griffin, C. Lindstrom, Sz. Meszaros, P. Szekely, M. C. B. Ashley, T. R. Bedding. 2005-09-16. Binarity and multiperiodicity in high-amplitude delta Scuti stars. https://arxiv.org/abs/astro-ph/0509485

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