The Photometric Investigation of V921 Her Using the Lunar-Based Ultraviolet Telescope of Chang’e-3 Mission
المؤلفون المشاركون
Zhou, Xiao
Qian, Sheng-Bang
Zhang, Jia
Li, Lin-Jia
Wang, Qi-Shan
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-6، 6ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-06-15
دولة النشر
مصر
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
The light curve of V921 Her in ultraviolet band observed by the Lunar-based Ultraviolet Telescope (LUT) is analyzed by the Wilson-Devinney code.
Our solutions conclude that V921 Her is an early type marginal contact binary system with an additional close-in component.
The binary system is under poor thermal contact with a temperature difference of nearly 700 K between the two components.
The close-in component contributes about 19% of the total luminosity in the triple system.
Combining the radial velocity study together with our photometric solutions, the mass of the primary star and secondary one is calculated to be M 1 = 1.784 ( ± 0.055 ) M ⊙ , M 2 = 0.403 ( ± 0.012 ) M ⊙ .
The evolutionary scenario of V921 Her is discussed.
All times of light minimum of V921 Her available in the bibliography are taken into account and the O - C curve is analyzed for the first time.
The most probable fitting results are discussed in the paper, which also confirm the existence of a third component ( P 3 = 10.2 year) around the binary system.
The period of V921 Her is also undergoing a continuously rapid increase at a rate of d P / d t = + 2.79 × 1 0 - 7 d a y · y e a r - 1 , which may be due to mass transfer from the less massive component to the more massive one.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhou, Xiao& Qian, Sheng-Bang& Zhang, Jia& Li, Lin-Jia& Wang, Qi-Shan. 2016. The Photometric Investigation of V921 Her Using the Lunar-Based Ultraviolet Telescope of Chang’e-3 Mission. Advances in Astronomy،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1079402
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhou, Xiao…[et al.]. The Photometric Investigation of V921 Her Using the Lunar-Based Ultraviolet Telescope of Chang’e-3 Mission. Advances in Astronomy No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1079402
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhou, Xiao& Qian, Sheng-Bang& Zhang, Jia& Li, Lin-Jia& Wang, Qi-Shan. The Photometric Investigation of V921 Her Using the Lunar-Based Ultraviolet Telescope of Chang’e-3 Mission. Advances in Astronomy. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1079402
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1079402
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر