Institutional Repository of Optical Astronomy Research Laboratory
| Binary open clusters in the Gaia data | |
Song, Fangfang1,2 ; Esamdin, Ali1,2; Hu, Qingshun1,2; Zhang, Mengfan1,2
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| 2022-10-07 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 666Pages:A75 |
| Contribution Rank | 1 |
| Abstract | Context. Observations indicate that the fraction of potential binary star clusters in the Milky Way is either the same or lower than that of the Magellanic Clouds. The unprecedented precision in the parallax measurements by Gaia has allowed for the discovery of a growing number of new binary open clusters (OCs). Aims. We aim to survey the candidates of truly binary open clusters that are formed simultaneously, using information from the Gaia database. Methods. Based on the most recent catalog of open clusters, we investigated the interactions of adjacent binary open clusters in our Galaxy within separations of 50 pc. We compared their coordinates, proper motions, parallaxes, and color-magnitude diagrams (CMDs) via binary plots for all candidate pairs. The candidates of truly binary open clusters are selected on the basis of their common proper motions and consistent behaviors in the CMDs of different clusters that are limited to a separation of 50 pc. Results. About ten pairs of the selected binary open clusters appear to be the same clusters, based on evidence that almost half of the cluster members are shared. Fourteen pairs are possibly true binaries, implying that they may come from the same clouds, among which five pairs are newly discovered. In addition, two clusters, UBC 46 and UBC 192, were found to be part of the stellar complex LISCA I. Our results confirm that OCs born in groups are usually composed of young open clusters. |
| Keyword | open clusters and associations general stars evolution galaxies star clusters general |
| DOI | 10.1051/0004-6361/202243524 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | OPEN STAR-CLUSTERS ; EVOLUTION ; RAVE |
| Funding Project | Natural Science Foundation of China[NSFC-U2031209] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000864854000003 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4906 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Song, Fangfang |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Song, Fangfang,Esamdin, Ali,Hu, Qingshun,et al. Binary open clusters in the Gaia data[J]. ASTRONOMY & ASTROPHYSICS,2022,666:A75. |
| APA | Song, Fangfang,Esamdin, Ali,Hu, Qingshun,&Zhang, Mengfan.(2022).Binary open clusters in the Gaia data.ASTRONOMY & ASTROPHYSICS,666,A75. |
| MLA | Song, Fangfang,et al."Binary open clusters in the Gaia data".ASTRONOMY & ASTROPHYSICS 666(2022):A75. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Song-2022-Binary ope（1052KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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