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Distributions of Geometrical and Physical Parameters of Contact Binaries
Authors:M Vaňko  J Tremko  T Pribulla  D Chochol  ? Parimucha  J M Kreiner
Institution:(1) Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská, Lomnica, Slovakia;(2) Institute of Physics, Faculty of Natural Sciences University of P.J. Šafárik, 040 01 Košice, Slovakia;(3) Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Cracow, Poland
Abstract:The distributions of geometrical and physical parameters from the CCBS (Catalogue of Contact Binary Stars) and the ASAS-3 (The All Sky Automated Survey) are discussed. The distributions of orbital periods of light curves for 374 contact binaries from the CCBS as well as 3590 contact binaries, selected by Fourier decomposition of 4216 eclipsing binaries from the ASAS-3 database, are similar. The maxima of the period distributions are between 0.31–0.40 days (0.25–0.32 days for W-type and 0.35–0.40 days for A-type) and 0.40–0.45 days for the CCBS and ASAS-3 dataset, respectively.
Keywords:Contact binaries  Geometrical and physical parameters  Distribution
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