Formation and evolution of new primordial open cluster groups: Feedback-driven star formation
文献类型：期刊论文
| 作者 | Liu, Guimei3,4; Zhang, Yu3,4 ; Zhong, Jing1; Chen, Li1,4; Meng, Xiangcun5,6; Wu, Kai2
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2025-04-09 |
| 卷号 | 696页码:A117 |
| 关键词 | open clusters and associations: general |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202452774 |
| 产权排序 | 1 |
| 英文摘要 | Context. Open cluster (OC) groups are collections of spatially close OCs originating from the same giant molecular cloud. The formation mechanism of the OC groups remains unclear due to limited sample size and data precision. Recent advances in astrometric data from the Gaia mission have provided an unprecedented opportunity to study OC groups in detail. Aims. We aim to extend the sample of OC groups and explore the formation and evolution mechanisms of the newly identified pri-mordial OC groups. We focus on the impact of stellar feedback events occurring near the OC groups and their role in triggering star formation within these groups. Methods. We identified the OC group using Gaia data by analyzing the close correlations in three-dimensional (3D) spatial, 3D velocity, and age. We conducted N-body simulations to trace the dynamical evolution of these groups and obtained the birthplace of OCs. A region where supernova (SN) explosions most likely occurred was predicted around the birthplaces of OC groups, based on the correlation between OC ages and their separation from the possible SN explosion sites. We also traced the orbits of pulsars (PSRs) using the Galactic potential model to probe their association with predicted SN explosion regions. Results. We report the detection of four OC groups. The member OCs within each group are spatially proximate and exhibit similar velocities. The age spread of these OC groups is within 30 Myr, consistent with the duration of continuous star formation events. Dynamical simulations show that these OC groups gradually disperse over time, eventually evolving into independent OCs. The inference can be made that there exist specific regions surrounding Group 1 and Group 2 where the occurrence of SN explosions is highly probable. The strong correlations between OC ages and their separation from predicted SN explosion sites reveal a notable age gradient outward from the SN explosions. Additionally, we detected three PSRs near Group 1 and 26 PSRs near Group 2, whose birthplaces align with the predicted SN explosions regions. Conclusions. The member OCs within each OC group originate from the same molecular cloud, forming through a process of sequential star formation. We propose a star formation scenario in which multiple SN explosions triggered the formation of Group 1 and Group 2. Our results support the supernova-triggered star formation process and also reinforce the hierarchical star formation model, highlighting the multi-scale interactions that drive star and open cluster formation. |
| WOS关键词 | STELLAR SNAKE ; BINARY ; DISCOVERY ; I. ; ORION ; SIMULATIONS ; VALIDATION ; SUPERNOVAE ; B2020+28 ; ASTROPY |
| 资助项目 | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[12090040] ; National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[12090042] ; National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[12073060] ; National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[12333008] ; National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[12288102] ; National Natural Science Foundation of China (NSFC)[2022-XBQNXZ013] ; Chinese Academy of Sciences (CAS) Light of West China Program[2022D01E86] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[ZYYD2025QY27] ; Central Guidance for Local Science and Technology Development Fund[2023YFE0102300] ; National Key R&D Inter governmental Cooperation Program of China[2023TSYCCX0101] ; Tianshan Talent Training Program[2019YFA0405501] ; National Key R&D Program of China ; Youth Innovation Promotion Association CAS[CMS-CSST-2021-A08] ; China Manned Space Project[22dz1202400] ; Science and Technology Commission of Shanghai Municipality[20590760800] ; Shanghai Science and Technology Program ; Program of Shanghai Academic/Technology Research Leader[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory[202401BC070007] ; International Centre of Supernovae, Yunnan Key Laboratory[202201BC070003] ; Yunnan Fundamental Research Projects[Sp 345/24-1] ; DFG |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001463199500003 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809 ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) Light of West China Program ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Central Guidance for Local Science and Technology Development Fund ; National Key R&D Inter governmental Cooperation Program of China ; Tianshan Talent Training Program ; National Key R&D Program of China ; Youth Innovation Promotion Association CAS ; China Manned Space Project ; Science and Technology Commission of Shanghai Municipality ; Shanghai Science and Technology Program ; Program of Shanghai Academic/Technology Research Leader ; International Centre of Supernovae, Yunnan Key Laboratory ; Yunnan Fundamental Research Projects ; DFG |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7563]  |
| 专题 | 光学天文与技术应用研究室_星团与星系研究团组 |
| 通讯作者 | Zhang, Yu; Zhong, Jing |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Astrophys Div, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany 3.Chinese Acad Sci, XinJiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China 6.Int Ctr Supernovae, Yunnan Key Lab, Kunming 650216, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Guimei,Zhang, Yu,Zhong, Jing,et al. Formation and evolution of new primordial open cluster groups: Feedback-driven star formation[J]. ASTRONOMY & ASTROPHYSICS,2025,696:A117. |
| APA | Liu, Guimei,Zhang, Yu,Zhong, Jing,Chen, Li,Meng, Xiangcun,&Wu, Kai.(2025).Formation and evolution of new primordial open cluster groups: Feedback-driven star formation.ASTRONOMY & ASTROPHYSICS,696,A117. |
| MLA | Liu, Guimei,et al."Formation and evolution of new primordial open cluster groups: Feedback-driven star formation".ASTRONOMY & ASTROPHYSICS 696(2025):A117. |
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来源：新疆天文台
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