PHOTOELECTRIC MONITORING OF ACTIVE CLOSE BINARIES

Автор(и)

  • T. Pribulla Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranska Lomnica, Slovakia, Словаччина
  • D. Chochol Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranska Lomnica, Slovakia, Словаччина
  • S. Parimucha Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranska Lomnica, Slovakia,, Словаччина
  • P. Rovithis National Astronomical Observatory, P.O. Box 20048, GR 11810 Athens, Greece, Греція
  • H. Rovithis-Livaniou Department of Astrophysics, Astronomy and Mechanics, University of Athens, GR 157 84 Zografos, Athens, Greece, Греція
  • J. Tremko Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranska Lomnica, Slovakia, Словаччина

DOI:

https://doi.org/10.18524/1810-4215.2001.14.99484

Ключові слова:

Stars, binary, contact, stars, individual, XY UMa, RT And, VW Cep, SW Lac

Анотація

The results of the long-term UBV R photoelectric monitoring of active close binaries XY UMa, RT And, VW Cep and SW Lac are presented. The orbital period changes are discussed including light-time effect and apparent changes caused by the surface activity. The presence and effects of other components to the studied close binaries are stressed. Clean light curves are constructed and resulting photometric elements are used to determine the absolute parameters of the systems.

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2017-04-20

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