Updated UBV light-curve and period analysis of eclipsing binary HS Herculis


Bozkurt Z. , Degirmenci O. L.

ASTROPHYSICS AND SPACE SCIENCE, vol.304, pp.29-33, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 304
  • Publication Date: 2006
  • Doi Number: 10.1007/s10509-006-9060-9
  • Title of Journal : ASTROPHYSICS AND SPACE SCIENCE
  • Page Numbers: pp.29-33

Abstract

UBV light-curves of the eclipsing binary HS Herculis, obtained in 2002-2003 observational seasons, were analysed with Wilson-Devinney computer code. New absolute dimensions of the system were calculated using the results of the light-curve analysis. Period variation of the system was also investigated. Several new times of minima have been secured for this problematic system. An apsidal motion with a period of 80.7 years was confirmed and a third body in a pretty eccentric orbit (e(3) = 0.90 +/- 0.08) with a period of 85.4 years was found. The corresponding internal structure constants of the binary system, logk(2), and the mass of the third body were derived.