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1SWASP J010313.78+352903.7: A Totally Eclipsing Binary with Components in Poor Thermal Contact
Wang, Zhihua1; Zhu LY(朱俐颖)2,3; Yuan, Kai1
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2023
卷号23期号:1
关键词(stars:)binaries(including multiple): close (stars:)binaries: eclipsing stars: individual(1SWASPJ010313.78+352903.7)
ISSN号1674-4527
DOI10.1088/1674-4527/ac9f08
产权排序第2完成单位
文献子类Article
英文摘要

We presented photometry for an EB-type totally eclipsing binary, 1SWASP J010313.78+352903.7, observed with the Xinglong 85 cm telescope on 2021 October 22. Light curves in five bands (including the TESS data) were analyzed by employing the Wilson-Devinney method. The photometric solutions show that it is a contact binary with a relatively low mass ratio (q asymptotic to 0.28), relatively large fill-out factor (f asymptotic to 40%) and large temperature difference (delta T asymptotic to 1700 K). Max.I-Max.II is up to about 9% of variable light amplitude of the asymmetric light curves. It is well described by double-hot spots model on the surface of the cooler secondary. The two hot spots are both in growing and evolving. They may be caused by two different mechanics, i.e., magnetic stellar activity and mass transfer. The large temperature difference between the two contact components indicates that they share a non-thermal equilibrium common envelope.

学科主题天文学 ; 恒星与银河系 ; 恒星形成与演化
URL标识查看原文
出版地20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
资助项目Natural Science Foundation of Shandong Province, China[ZR2021QA082] ; National Natural Science Foundation of China[11922306] ; Doctoral Start-up Foundation of Yantai University[SX20B112] ; National Development and Reform Commission
WOS关键词URSAE MAJORIS ; RELAXATION OSCILLATION ; SYSTEMS ; STATISTICS ; EVOLUTION ; CATALOG ; STARS ; LIGHT ; MODEL
WOS研究方向Astronomy & Astrophysics
语种英语
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号WOS:000905243800001
资助机构Natural Science Foundation of Shandong Province, China[ZR2021QA082] ; National Natural Science Foundation of China[11922306] ; Doctoral Start-up Foundation of Yantai University[SX20B112] ; National Development and Reform Commission
内容类型期刊论文
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25730]  
专题云南天文台_双星与变星研究组
通讯作者Wang, Zhihua
作者单位1.School of Mathematics and Information Sciences, Yantai University, Yantai 264005, China; wzhastro@ytu.edu.cn;
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714
Wang, Zhihua,Zhu LY,Yuan, Kai. 1SWASP J010313.78+352903.7: A Totally Eclipsing Binary with Components in Poor Thermal Contact[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(1).
APA Wang, Zhihua,Zhu LY,&Yuan, Kai.(2023).1SWASP J010313.78+352903.7: A Totally Eclipsing Binary with Components in Poor Thermal Contact.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(1).
MLA Wang, Zhihua,et al."1SWASP J010313.78+352903.7: A Totally Eclipsing Binary with Components in Poor Thermal Contact".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.1(2023).
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