Photometric study of two eclipsing binary stars: Light curve analysis and system parameters for GU CMa and SWASP J011732.10+525204.9
| Autor: | M.S. Abolazm, M.S. Al-Gazzar, K. A. K. Gadallah, S. M. Saad, A. Shokry, M.H. El-Depsey, M.M. Beheary, M. A. Hamdy |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
010308 nuclear & particles physics Component (thermodynamics) Geometric configuration Astronomy Binary number Astronomy and Astrophysics Contact binary Astrophysics Light curve 01 natural sciences Space and Planetary Science 0103 physical sciences System parameters Binary star 010303 astronomy & astrophysics Instrumentation Stellar evolution |
| Zdroj: | New Astronomy. 59:8-13 |
| ISSN: | 1384-1076 |
| Popis: | A new photometric study of two eclipsing binary systems (GU CMa and SWASP J011732.10+525204.9) is presented. The accepted solutions of analyzing the light curves revealed that GU CMa is a semi-detached system consisting of two early spectral type components, (B2 and B2.5) while SWASP J011732.10+525204.9 is a contact binary with two late type components (K2 and M1). The primary component of each system is the massive one. The geometric configuration indicates that SWASP J011732.10+525204.9 passes through a very critical phase in which each component exactly fills its limited lobe with zero fill out ratio. New times of minimum and the absolute physical parameters for each system are determined. The evolution status for each system has been investigated. |
| Databáze: | OpenAIRE |
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