VRI photometry and light curve analysis of short period W UMa-Type 1SWASP J222514.69?+?361643.0 |
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| Institution: | 1. Astronomy Dept., National Research Institute of Astronomy and Geophysics, (NRIAG), Helwan, Cairo, Egypt;2. Astronomy Dept. and Meteorology, Faculty of Science, Al-Azhar University, Cairo, Egypt;3. Kottamia Center of Scientific Excellence in Astronomy and Space Sciences (KCScE), STDF, ASRT, Cairo, Egypt;1. Sabanc? University, Faculty of Engineering and Natural Science, Orhanli - Tuzla, Istanbul, 34956, Turkey;2. ?stanbul Technical University, Faculty of Science and Letters, Physics Engineering Department, Istanbul, 34469, Turkey;1. Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, CPC 1425FQB, Argentina;2. Departamento de Astronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500 Porto Alegre, RS-91501-970, Brazil;3. Observatorio Astronómico, Universidad Nacional de Córdoba, Laprida 854, Córdoba, Argentina;1. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, 119991, Russia;2. Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia;3. Institute of Experimental Physics, Slovak Academy of Sciences, Ko?ice, 04001, Slovakia;4. Nuclear Physics Institute, Czech Academy of Sciences, ?e?, Czech Republic;5. Institute of Solar-Terrestrial Physics, Russian Academy of Sciences, Irkutsk, 664033, Russia;1. Yunnan Observatories, Chinese Academy of Sciences (CAS), P. O. Box 110, 650216 Kunming, China;2. Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P. O. Box 110, 650216 Kunming, China;3. University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, China;4. Sternberg Astronomical Institute, Moscow State University, Universitetskij prospect 13, Moscow 119992, Russia;1. Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, México D.F., México;2. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA;3. Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, México D.F., México;4. Department of Chemistry “Ugo Schif”, University of Florence, Sesto F. no, 50019 Florence, Italy;5. Graduate School of Science and Technology, Hirosaki University, Japan;1. College of Science/Department of Physics & NAOC-GZU-Sponsored Center for Astronomy Research, Guizhou University, Guiyang 550025, P.R. China;2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, P.R. China;3. Dept. of Physics and Astronomy, Butler University, Indianapolis, IN 46208, USA;4. National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 65 0011, P.R. China |
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| Abstract: | We present the first light curve analysis and modeling for the short period close binary 1SWASP J222514.69 + 361643.0. The results show that the system is in over contact with factor ? = 53%. The primary component is the massive and hotter one. The system is A-subtype W UMa eclipsing binary with spectral types K2 and K3, respectively. |
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