PHOTOELECTRIC MONITORING OF ACTIVE CLOSE BINARIES

Автор(и)

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

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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