The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819
文献类型：期刊论文
| 作者 | Li XZ(李旭志)1,2,3,4 ; Liu L(刘亮)1,2,3,4
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| 刊名 | The Astronomical Journal
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| 出版日期 | 2021-01 |
| 卷号 | 161期号:1 |
| 关键词 | Eclipsing binary stars Binary stars Contact binary stars Open star clusters |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/abcb92 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Using the Kepler Eclipsing Binary Catalog, we found seven EW-type eclipsing binaries within the tidal radius of the intermediate-aged open cluster NGC 6819 (about 40′). These seven EW eclipsing binaries are all confirmed to be contact binaries by light curve analysis with the 2015 version Wilson–Devinney program. Using the parameter characteristics of contact binaries, we found that only KIC 4937217 could be a member of NGC 6819. Moreover, KIC 5199489 should be a shallow, unity-mass-ratio contact binary implying an early contact stage or a mass-ratio reverse stage. Nevertheless, KIC 5198934 and KIC 5374883 should be deep, low mass ratio contact binaries (DLMRCBs), which are usually considered as premergers. |
| 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 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | ABSOLUTE-MAGNITUDE CALIBRATION ; UMA-TYPE SYSTEMS ; ECLIPSING BINARY ; CLOSE-BINARY ; VARIABLE-STARS ; LIGHT CURVES ; CLUSTER ; EVOLUTION ; PERIOD ; PARAMETERS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000599470000001 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/23991]  |
| 专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Li XZ(李旭志) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences (CAS), 650216 Kunming, People's Republic of China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650216 Kunming, People's Republic of China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China 4.University of the Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, 100049 Beijing, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Li XZ,Liu L. The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819[J]. The Astronomical Journal,2021,161(1). |
| APA | Li XZ,&Liu L.(2021).The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819.The Astronomical Journal,161(1). |
| MLA | Li XZ,et al."The Investigation of Seven Kepler Contact Binaries in the Field of NGC 6819".The Astronomical Journal 161.1(2021). |
入库方式： OAI收割
来源：云南天文台
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