V470 Cas and GSC 2901-00089, Two New Double-mode Cepheids

2016/05/04 by A. V. Khruslov, Khruslov, A. V., A. V. Kusakin +1
Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomy and Astrophysical Research #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1605.01313

16 pages, 14 figures, 5 tables

arxiv created 2016/05/04 · openalex publication_date 2016/05/04 · arxiv updated 2016/05/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a photometric study of two new double-mode Cepheids, pulsating in the first and second overtones modes: V470 Cas and GSC 2901-00089. For the search of the double-mode variability, we used all available observations from the ROTSE-I/NSVS and SuperWASP online public archives. Our multicolour CCD observations in the B, V and R bands in Johnson's system confirm the double periodicity of these variables. We study period variations of the two stars; variations of the first overtone periods were reliably detected. In addition, we consider the Petersen diagram for the Galactic 1O/2O Cepheids.

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