A possible formation channel for blue hook stars in globular cluster - II. Effects of metallicity, mass ratio, tidal enhancement efficiency and helium abundance | |
Lei, Zhenxin1,2; Zhao, Gang2; Zeng, Aihua1; Shen, Lihua1; Lan, Zhongjian1; Jiang DK(姜登凯)3,4; Han ZW(韩占文)3,4 | |
发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2016-12-01 | |
卷号 | 463期号:4页码:3449-3460 |
DOI | 10.1093/mnras/stw2242 |
产权排序 | 第4完成单位 |
收录类别 | SCI ; EI |
关键词 | Binaries: General Globular Clusters: General |
摘要 | Employing tidally enhanced stellar wind, we studied in binaries the effects of metallicity, mass ratio of primary to secondary, tidal enhancement efficiency and helium abundance on the formation of blue hook (BHk) stars in globular clusters (GCs). A total of 28 sets of binary models combined with different input parameters are studied. For each set of binary model, we presented a range of initial orbital periods that is needed to produce BHk stars in binaries. All the binary models could produce BHk stars within different range of initial orbital periods. We also compared our results with the observation in the T-eff-logg diagram of GC NGC 2808 and omega Cen. Most of the BHk stars in these two GCs locate well in the region predicted by our theoretical models, especially when C/N-enhanced model atmospheres are considered. We found that mass ratio of primary to secondary and tidal enhancement efficiency have little effects on the formation of BHk stars in binaries, while metallicity and helium abundance would play important roles, especially for helium abundance. Specifically, with helium abundance increasing in binary models, the space range of initial orbital periods needed to produce BHk stars becomes obviously wider, regardless of other input parameters adopted. Our results were discussed with recent observations and other theoretical models. |
资助项目 | National Natural Science Foundation of China[11503016] ; National Natural Science Foundation of China[11390371] ; National Natural Science Foundation of China[11233004] ; National Natural Science Foundation of China[11573061] ; Youth Fund project of Hunan Provincial Education Department[15B214] ; Natural Science Foundation of China[11390374] ; Natural Science Foundation of China[11521303] ; Science and Technology Innovation Talent Programme of the Yunnan Province[2013HA005] ; Chinese Academy of Sciences[XDB09010202] ; Chinese Academy of Sciences[KJZD-EW-M06-01] |
项目资助者 | National Natural Science Foundation of China[11503016, 11390371, 11233004, 11573061] ; Youth Fund project of Hunan Provincial Education Department[15B214] ; Natural Science Foundation of China[11390374, 11521303] ; Science and Technology Innovation Talent Programme of the Yunnan Province[2013HA005] ; Chinese Academy of Sciences[XDB09010202, KJZD-EW-M06-01] |
语种 | 英语 |
学科领域 | 天文学 ; 恒星与银河系 ; 恒星物理学 ; 恒星形成与演化 |
文章类型 | Article |
出版者 | OXFORD UNIV PRESS |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
ISSN | 0035-8711 |
URL | 查看原文 |
WOS记录号 | WOS:000393568200003 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | HORIZONTAL-BRANCH STARS ; STELLAR ASTROPHYSICS MESA ; DWARF COOLING CURVE ; NA-O ANTICORRELATION ; HOT SUBDWARF STARS ; OMEGA-CENTAURI ; MILKY-WAY ; MULTIPLE POPULATIONS ; ECLIPSING BINARIES ; EVOLUTIONARY STATUS |
EI入藏号 | 20221612001315 |
EI主题词 | Astrophysics |
EI分类号 | 657.2 Extraterrestrial Physics and Stellar Phenomena - 804 Chemical Products Generally - 913.1 Production Engineering |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/9916 |
专题 | 大样本恒星演化研究组 中国科学院天体结构与演化重点实验室 |
通讯作者 | Lei, Zhenxin; Han ZW(韩占文) |
作者单位 | 1.Department of Science, Shaoyang University, Shaoyang 422000, China 2.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences,Kunming 650011, China 4.4Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China |
通讯作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Lei, Zhenxin,Zhao, Gang,Zeng, Aihua,et al. A possible formation channel for blue hook stars in globular cluster - II. Effects of metallicity, mass ratio, tidal enhancement efficiency and helium abundance[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,463(4):3449-3460. |
APA | Lei, Zhenxin.,Zhao, Gang.,Zeng, Aihua.,Shen, Lihua.,Lan, Zhongjian.,...&Han ZW.(2016).A possible formation channel for blue hook stars in globular cluster - II. Effects of metallicity, mass ratio, tidal enhancement efficiency and helium abundance.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,463(4),3449-3460. |
MLA | Lei, Zhenxin,et al."A possible formation channel for blue hook stars in globular cluster - II. Effects of metallicity, mass ratio, tidal enhancement efficiency and helium abundance".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 463.4(2016):3449-3460. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A possible formation(992KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论