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 |
DOI | 10.1088/1674-4527/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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