Updated UBV Light-Curve and Period Analysis of Eclipsing Binary HS Herculis |
| |
Authors: | Zeynep Bozkurt Ömer Lütfi Değirmenci |
| |
Affiliation: | (1) Faculty of Science, Department of Astronomy and Space Sciences, Ege University, 35100 Bornova, İzmir, Turkey |
| |
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, log k 2, and the mass of the third body were derived. |
| |
Keywords: | HS Her: Period variation: apsidal motion Light-time effect Light-curve: WD solution |
本文献已被 SpringerLink 等数据库收录! |
|