Academic Journal
Photometric solutions of three eclipsing binary stars observed from Dome A, Antarctica
| العنوان: | Photometric solutions of three eclipsing binary stars observed from Dome A, Antarctica |
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| المؤلفون: | Liu, N., Fu, J. N., Zong, W., Wang, L. Z., Uddin, S. A., Zhang, X. B., Zhang, Y. P., Cang, T. Q., Li, G., Yang, Y., Yang, G. C., Mould, J., Morrell, N. |
| المساهمون: | Swinburne University of Technology |
| المصدر: | The Astronomical Journal, Vol. 155, no. 4 (Apr 2018), article no. 168 |
| بيانات النشر: | American Astronomical Society |
| سنة النشر: | 2018 |
| المجموعة: | Swinburne University of Technology: Swinburne Research Bank |
| الوصف: | Based on spectroscopic observations for the eclipsing binaries CSTAR 036162 and CSTAR 055495 with the WiFeS/2.3 m telescope at SSO and CSTAR 057775 with the Mage/Magellan I at LCO in 2017, stellar parameters are derived. More than 100 nights of almost-continuous light curves reduced from the time-series photometric observations by CSTAR at Dome A of Antarctic in i in 2008 and in g and r in 2009, respectively, are applied to find photometric solutions for the three binaries with the Wilson-Devinney code. The results show that CSTAR 036162 is a detached configuration with the mass ratio q = 0.354 +/- 0.0009, while CSTAR 055495 is a semi-detached binary system with the unusual q = 0.946 +/- 0.0006, which indicates that CSTAR 055495 may be a rare binary system with mass ratio close to one and the secondary component filling its Roche Lobe. This implies that a mass-ratio reversal has just occurred and CSTAR 055495 is in a rapid mass-transfer stage. Finally, CSTAR 057775 is believed to be an A-type W UMa binary with q = 0.301 +/- 0.0008 and a fill-out factor of f = 0.742(8). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | http://hdl.handle.net/1959.3/443053; https://doi.org/10.3847/1538-3881/aab266 |
| DOI: | 10.3847/1538-3881/aab266 |
| الاتاحة: | http://hdl.handle.net/1959.3/443053 https://doi.org/10.3847/1538-3881/aab266 |
| Rights: | Copyright © 2018 The American Astronomical Society. The published version is reproduced in accordance with the copyright policy of the publisher. |
| رقم الانضمام: | edsbas.E4BE15D5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3847/1538-3881/aab266 |
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