Study of 26 Galactic Open Clusters with Extended Main-sequence Turnoffs
文献类型：期刊论文
| 作者 | Deng YY(邓阳阳)1,2,3 ; Li, Zhong-Mu1
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 24期号:6 |
| 关键词 | (stars:) binaries: general Galaxy: fundamental parameters (Galaxy:) open clusters and associations: general (stars:) Hertzsprung-Russell and C-M-diagrams |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ad3dc5 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Recent studies indicate that some Galactic open clusters (OCs) exhibit extended main-sequence turnoff (eMSTO) in their color-magnitude diagrams (CMDs). However, the number of Galactic OCs with eMSTO structures detected so far is limited, and the reasons for their formation are still unclear. This work identifies 26 Galactic OCs with undiscovered eMSTOs and investigates the causes of these features. Stellar population types and fundamental parameters of cluster samples are acquired using CMD fitting methods. Among them, the results of 11 OCs are reliable as the observed CMDs are well-reproduced. We propose the crucial role of stellar binarity and confirm the importance of stellar rotation in reproducing eMSTO morphologies. The results also show that the impact of age spread is important, as it can adequately explain the structure of young OCs and fit the observed CMDs of intermediate-age OCs better. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA |
| WOS关键词 | COLOR-MAGNITUDE DIAGRAM ; STELLAR ROTATION ; STAR-CLUSTERS ; BINARY FRACTION ; LISC CATALOG ; EVOLUTION ; ISOCHRONES ; TRACKS ; II. |
| 资助项目 | Yunnan Academician Workstation of Wang Jingxiu[202005AF150025]; China Manned Space Project[ghfund202302019167]; Natural Science Foundation of Yunnan Province[202201BC070003] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001227775600001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | Yunnan Academician Workstation of Wang Jingxiu[202005AF150025] ; China Manned Space Project[ghfund202302019167] ; Natural Science Foundation of Yunnan Province[202201BC070003] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27210]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 作者单位 | 1.Institute of Astronomy and Information, Dali University, Dali 671003, China 2.University of Chinese Academy of Sciences, Beijing 100049, China; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; dengyangyang@ynao.ac.cn; |
| 推荐引用方式 GB/T 7714 | Deng YY,Li, Zhong-Mu. Study of 26 Galactic Open Clusters with Extended Main-sequence Turnoffs[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(6). |
| APA | 邓阳阳,&Li, Zhong-Mu.(2024).Study of 26 Galactic Open Clusters with Extended Main-sequence Turnoffs.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(6). |
| MLA | 邓阳阳,et al."Study of 26 Galactic Open Clusters with Extended Main-sequence Turnoffs".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.6(2024). |
入库方式： OAI收割
来源：云南天文台
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