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Astrophysics and Space Science

, Volume 203, Issue 1, pp 161–167 | Cite as

The early-type eclipsing contact binary TY Puppis

  • Shenghong Gu
  • Yulan Yang
  • Qingyao Liu
  • Zhousheng Zhang
Article

Abstract

In this paper we present theBV photoelectric light curves of the W UMa-type eclipsing binary TY Pup. We have gained ephemerides by means of the times of minima. The obtained light curves have been solved using Wilson-Devinney's synthetic code. The results indicate that TY Pup is a contact system with mass ratio 0.185 and a large degree of overcontact of 52%. Combined with spectroscopic material, absolute parameters of TY Pup are derived. It may be concluded that TY Pup is an evolved contact binary.

Keywords

Large Degree Light Curf Contact System Absolute Parameter Photoelectric Light Curf 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Shenghong Gu
    • 1
  • Yulan Yang
    • 1
  • Qingyao Liu
    • 1
  • Zhousheng Zhang
    • 1
  1. 1.Yunnan ObservatoryAcademia SinicaKunmingChina

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