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Photometric study of the newly discovered short period eclipsing binary 1SWASP J133105.91 + 121538.0 |
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| Affiliation: | 1. Department of Physics, College of Science, Northern Border University, Arar, Saudi Arabia;2. Department of Astronomy, National research Institute of Astronomy and Geophysics, Helwan 11421, Cairo, Egypt;1. Physics Department, Faculty of Science and Arts, Northern Border University, Rafha Branch, Saudi Arabia;2. Physics Department, Faculty of Science, Northern Border University, Arar, Saudi Arabia;3. Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG), 11421, Helwan, Cairo, Egypt;1. Department of Physics and Astronomy, Shumen University, Shumen 9700, Bulgaria;2. Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Mexico |
| Abstract: | A total of 311 BVRI observations were carried out on 4 May 2013 for the new short period W UMa system 1SWASP J133105.91 + 121538.0 using the 1.88 m reflector telescope of Kottamia Astronomical Observatory (KAO) at NRIAG. A photometric solution of these light curves was obtained by means of Wilson–Devinney (WD) code. A spotted model was applied to treat the asymmetry of the light curve. The results show that the more massive component is hotter than the less massive one with about ΔT ∼ 300 K. The system is at a distance of 89 ± 3.6 pc. Based on the physical parameters of the system, we investigate the evolutionary state of the components. Both components are above the zero age main sequence (ZAMS) track by about 0.2 magnitudes. |
| Keywords: | Eclipsing binary W UMa Photometric elements Evolution ZAMS track |
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