The fractions of post-binary-interaction stars and evolved blue straggler stars on the red giant branch of globular clusters
文献类型:期刊论文
作者 | Wei DD(魏丹丹)1,2,3,4; Wang B(王博)1,2,4; Chen HL(陈海亮)1,2,4; Wang, Hai-Feng5; Gong XB(龚小波)1,2,3,4; Liu DD(刘栋栋)1,2,4; Jiang DK(姜登凯)1,2,4 |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
出版日期 | 2021-11 |
卷号 | 21期号:9 |
ISSN号 | 1674-4527 |
关键词 | blue stragglers stars chemically peculiar globular clusters general binaries general |
DOI | 10.1088/1674-4527/21/9/223 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | The red giant branch (RGB) of globular clusters (GCs) is home to some exotic stars, which may provide clues on the formation of multiple stellar populations in GCs. It is well known that binary interactions are responsible for many exotic stars. Thus, it is important to understand what fraction of stars on the RGB of GCs is the result of binary interactions. In this paper, we performed a binary population synthesis study to track the number of post-binary-interaction (post-BI) stars that appear on the RGB, with particular emphasis on the evolved blue straggler stars (E-BSSs). Assuming an initial binary fraction of nearly 50%, we find that about half of the objects on the RGB (called giants) underwent the binary interactions, and that E-BSSs account for around 10% of the giants in our standard simulation. We also compare the properties of post-BI giants that evolved from different channels. We find that the initial orbital period and mass ratio distributions significantly affect the fraction of post-BI giants. Our results imply that the non-standard stars from binary interactions provide a non-negligible contribution to the RGB stars in GCs, which should be considered in future investigations of the origin of multiple stellar populations. |
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 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
WOS关键词 | UV LEGACY SURVEY ; X-RAY BINARIES ; LOW-MASS ; SPECTROSCOPIC BINARIES ; ABUNDANCE PATTERNS ; MAIN-SEQUENCE ; EVOLUTION ; POPULATION ; ORIGIN ; ANOMALIES |
资助项目 | (1)Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China ; (2)Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Science, Kunming 650216, China ; (3)University of Chinese Academy of Science, Beijing 100049, China ; (4)Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China ; (5)South-Western Institute for Astronomy Research, Yunnan University, Kunming 650500, China |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:000714236800001 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12073070, 11733008, 11873085, 11521303, 12073071, 11873016, 11903075, 12003027, 11973081] ; Natural Science Foundation of Yunnan ProvinceNatural Science Foundation of Yunnan Province[2017HC018, 202001AT070058, 202001AU070054] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2018076, 2012048] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences[KJZD-EW-M06-01] ; CAS `Light of West China' Program ; National Key Basic R&D Program of ChinaNational Basic Research Program of China[2019YFA0405500] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation[2019M653504, 2020T130563] ; Yunnan province postdoctoral Directed culture Foundation ; Cultivation Project for LAMOST Scientific Payoff and Research Achievement of CAMS-CAS ; China Manned Space Project[CMS-CSST-2021-A08] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24651] |
专题 | 云南天文台_大样本恒星演化研究组 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 | Wei DD(魏丹丹) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Science, Kunming 650216, China; 3.University of Chinese Academy of Science, Beijing 100049, China; 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China; 5.South-Western Institute for Astronomy Research, Yunnan University, Kunming 650500, China |
推荐引用方式 GB/T 7714 | Wei DD,Wang B,Chen HL,et al. The fractions of post-binary-interaction stars and evolved blue straggler stars on the red giant branch of globular clusters[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(9). |
APA | Wei DD.,Wang B.,Chen HL.,Wang, Hai-Feng.,Gong XB.,...&Jiang DK.(2021).The fractions of post-binary-interaction stars and evolved blue straggler stars on the red giant branch of globular clusters.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(9). |
MLA | Wei DD,et al."The fractions of post-binary-interaction stars and evolved blue straggler stars on the red giant branch of globular clusters".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.9(2021). |
入库方式: OAI收割
来源:云南天文台
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