1SWASP J024148.62+372848.3: A spotted overcontact binary system under the short-period limit |
| |
| Institution: | 1. Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China;2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China;3. University of the Chinese Academy of Sciences, Beijing 100049, China;1. Department of Physics and Astronomy, Sejong University, Gwangjin-gu, Seoul 143-747, Republic of Korea;2. Istituto Nazionale di Astrofisica Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, Napoli 80131, Italy;3. International Center for Relativistic Astrophysics, Piazzale della Repubblica 2, Pescara 65122, Italy;1. Department of Physics, University of Kashmir, Hazratbal, Srinagar, Jammu and Kashmir 190006, India;2. Islamia College of Science and Commerce, Hawal, Srinagar, Jammu and Kashmir 190002, Inida;3. Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India;4. Applied Sciences Department, Gowhati University, Assam, India;1. Instituto de Astronomía, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Apartado Postal 70-543, 04510 D.F., México, Mexico;2. Universidad Anáhuac México Sur, Av. de las Torres 131, 01780, D.F., México, Mexico;3. Università di Pisa, I-56127 Pisa, Italy;4. INFN, Sezione di Pisa, I-56127 Pisa, Italy;1. Science Faculty, Department of Astronomy and Space Sciences, Ankara University, Tando?an 06100, Ankara, Turkey;2. Graduate School of Science and Engineering, Istanbul University, Bozdo?an Kemeri Cad. 8, Vezneciler, ?stanbul, Turkey;3. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 66, Cambridge, MA 02138, USA;1. 1393 Garvin Street, Prince George, BC, V2M 3Z1, Canada\n;3. Professor Emeritus Department of Physics and Astronomy, University of Calgary, Calgary, AB T2N 1N4, Canada |
| |
| Abstract: | With the 2013 version of W-D code, we derived the photometric solutions for the new discovered extremely short-period eclipsing binary 1SWASP J024148.62+372848.3 based on its complete RIc light curves. The results show that the system is a W-type overcontact system with a filling-out factor of 23% and a mass ratio of q = 1.23, thus it is a new target which belongs to the rare group of overcontact binary with period under the short period limit (0.22 days). The obviously asymmetries found in its light curves could be explained well by the high spots coverage on the two components which have strong magnetic activities due to their late type nature. A third light contributing about 40% of the total light has been detected during the light curve analysis. This additional component may play an important role in the formation of 1SWASP J024148.62+372848.3, just like those in other overcontact binaries below the limit. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
