The Crucial Role of Third Body in Formation and Evolution of Contact Binary Systems: Evidence from CY Ari and IK Lyn
文献类型：期刊论文
| 作者 | Xu, Hu-Shan6; Han, Zhong-Tao6; Na, Wei-wei6; Wang, Zhi-Hua5; Ma, Wen-wu3,4; Zhu LY(朱俐颖)1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2025-07-20 |
| 卷号 | 988期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ade152 |
| 产权排序 | 第5完成单位 |
| 文献子类 | Article |
| 英文摘要 | CY Ari and IK Lyn are two eclipsing binary systems that share the same spectral type but exhibit significantly different metallicities. Based on the Wilson-Devinney (W-D) method, the first photometric solutions are obtained by analyzing the new complete BVRcIc light curves. The completely eclipsing nature of the light curves allows for the determination of reliable photometric parameters for both systems. Analysis of the light curves indicates that the two systems are structurally similar. Both belong to W-type shallow contact binary systems, with nearly identical degrees of contact. The O - C analysis demonstrates that the orbital periods of CY Ari and IK Lyn are increasing over the long term, with the increase rate for IK Lyn being significantly higher than that for CY Ari. This discrepancy may arise from different mass transfer rates from the secondary star to the primary star. Additionally, a periodic oscillation with a period of 5.4 yr has been detected in CY Ari, potentially attributable to the light-time effect of an unseen third body. An analysis of the age and evolutionary stage elucidates the reasons behind the divergent evolutionary paths of CY Ari and IK Lyn. The presence of the third body accelerates the evolution of CY Ari by removing angular momentum from the central binary pair. Although CY Ari was formed later than IK Lyn, it has evolved into a similar stage. This study provides critical evidence of the significant role played by a third body in the formation and evolution of contact binary systems. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | STELLAR ATMOSPHERIC PARAMETERS ; URSAE-MAJORIS SYSTEMS ; 1ST DATA RELEASE ; CLOSE-BINARY ; MASS-DISTRIBUTION ; VARIABLE-STARS ; PERIOD CHANGES ; MILKY-WAY ; DISK ; LAMOST |
| 资助项目 | Yunnan Fundamental Research Projects[202401CF070039]; Yunnan Fundamental Research Projects[202301AT070299]; National Natural Science Foundation of China[12303038]; Science Foundation of Yunnan Province[202401AS070046]; Chinese Academy of Sciences (CAS) Interdisciplinary Innovation Team; Association of Universities for Research in Astronomy, Inc., under NASA[NAS5-26555]; NASA Office of Space Science[NAG5-7584]; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST); National Development and Reform Commission; Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001531850600001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Yunnan Fundamental Research Projects[202401CF070039, 202301AT070299] ; National Natural Science Foundation of China[12303038] ; Science Foundation of Yunnan Province[202401AS070046] ; Chinese Academy of Sciences (CAS) Interdisciplinary Innovation Team ; Association of Universities for Research in Astronomy, Inc., under NASA[NAS5-26555] ; NASA Office of Space Science[NAG5-7584] ; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) ; National Development and Reform Commission ; Chinese Academy of Sciences |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28433]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 通讯作者 | Zhu LY(朱俐颖) |
| 作者单位 | 1.University of Chinese Academy of Sciences, No. 1 Yanqihu East Road, Huairou District, 101408 Beijing, People’s Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, 650216 Kunming, People’s Republic of China; zhuly@ynao.ac.cn; 3.Institute of Theoretical Physics & Research Center of Gravitation, Lanzhou University, Lanzhou 730000, People’s Republic of China; 4.Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, and Key Laboratory of Quantum Theory and Applications of MoE, Lanzhou University, Lanzhou, Gansu 730000, People’s Republic of China; 5.School of Mathematics and Information Sciences, Yantai University, 264005 Yantai, People’s Republic of China; 6.Department of Physics, Yuxi Normal University, Phoenix Road 134, 653100 Yuxi, People’s Republic of China; |
| 推荐引用方式 GB/T 7714 | Xu, Hu-Shan,Han, Zhong-Tao,Na, Wei-wei,et al. The Crucial Role of Third Body in Formation and Evolution of Contact Binary Systems: Evidence from CY Ari and IK Lyn[J]. ASTROPHYSICAL JOURNAL,2025,988(1). |
| APA | Xu, Hu-Shan,Han, Zhong-Tao,Na, Wei-wei,Wang, Zhi-Hua,Ma, Wen-wu,&朱俐颖.(2025).The Crucial Role of Third Body in Formation and Evolution of Contact Binary Systems: Evidence from CY Ari and IK Lyn.ASTROPHYSICAL JOURNAL,988(1). |
| MLA | Xu, Hu-Shan,et al."The Crucial Role of Third Body in Formation and Evolution of Contact Binary Systems: Evidence from CY Ari and IK Lyn".ASTROPHYSICAL JOURNAL 988.1(2025). |
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来源：云南天文台
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