Photometric study and orbital period analysis of the W UMa type contact binary VZ Psc
作者: S. MaK. LiQ.-C. LiH.-Y. Gao
作者单位: 1Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, 264209, China
刊名: New Astronomy, 2018, Vol.59 , pp.1-7
来源数据库: Elsevier Journal
DOI: 10.1016/j.newast.2017.08.004
关键词: Stars: binaries: contactStars: binaries: eclipsingStars: individual (VZ Psc)
原始语种摘要: Abstract(#br)VZ Psc is a W-type contact binary system with a short period of 0.26125897 days. B, V, R c and I c light curves of the eclipsing binary system were obtained by using the 1.0 m reflecting telescope at Weihai Observatory of Shandong University. By collecting 136 times of minimum light, we studied the orbital period change of VZ Psc. A sinusoidal variation was discovered in the O − C diagram, and the amplitude of 0. d 0023 and the period of 17.7 year were obtained. This can be caused by Applegate mechanism or light-time effect. Both the mechanisms are suited according to our investigation, but we prefer the latter that the light-time effect due to the presence of a third body results in the cyclic variation. By using the W-D program, we analyzed the four color light curves....
全文获取路径: Elsevier  (合作)
影响因子:1.85 (2012)

  • period 
  • light 
  • contact 接触圈
  • study 学习
  • variation 变异
  • investigation 研究
  • orbital 轨道函数
  • result 成果
  • inclination 倾角
  • third 第三的