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The multiplicity properties of early-type stars from LAMOST DR8

文献类型：期刊论文

作者Guo YJ(郭彦君)2; Liu, C.1; Wang LQ(王璐茜)2; Wang JL(王锦良)2; Zhang, B.1; Ji KF(季凯帆)2; Han ZW(韩占文)2; Chen XF(陈雪飞)2
刊名CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO
出版日期2025
卷号55期号:3页码:421-424
关键词Statistical catalogs surveys early type binaries rotation
ISSN号1335-1842
DOI10.31577/caosp.2025.55.3.421
产权排序第1完成单位
文献子类Article
英文摘要Massive binary stars are key to understanding stellar formation and evolution. To explore the intrinsic binary fraction (f), mass ratio dis-tribution (f(q)), and orbital period distribution (f(P)) of early-type stars (O/B/A-types), we analyze a homogeneous spectroscopic sample of 886 stars from LAMOST DR8, each with more than six observations. These stars are classified based on effective temperature (Tor), metallicity ([M/H]), and pro-jected rotational velocity (vsini). Monte Carlo simulations were applied to correct for observational biases. Results show that the intrinsic binary fraction increases with Tor and metallicity, while remaining relatively constant across vsini. For stars in groups of B8-A, B4-B7, O-B3, the binary fractions are = 48% +/- 10%, 60%+/- 10%, and 76% +/- 10%, respectively. Key words: Statistical-catalogs-surveys-early-type-binaries-rotation.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地SLOVAK ACADEMY SCIENCES ASTRONOMICAL INST, TATRANSKA LOMINICA, SK-059 60, SLOVAKIA
资助项目Natural Science Foundation of China[2021YFA1600403/1]; Natural Science Foundation of China[12125303]; Natural Science Foundation of China[11733008]; Natural Science Foundation of China[12090040/3]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001509136400046
出版者SLOVAK ACADEMY SCIENCES ASTRONOMICAL INST
资助机构Natural Science Foundation of China[2021YFA1600403/1, 12125303, 11733008, 12090040/3]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28397]  
专题云南天文台_大样本恒星演化研究组
天文技术实验室
通讯作者Guo YJ(郭彦君)
作者单位1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China;
推荐引用方式
GB/T 7714		 Guo YJ,Liu, C.,Wang LQ,et al. The multiplicity properties of early-type stars from LAMOST DR8[J]. CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO,2025,55(3):421-424.
APA 郭彦君.,Liu, C..,王璐茜.,王锦良.,Zhang, B..,...&陈雪飞.(2025).The multiplicity properties of early-type stars from LAMOST DR8.CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO,55(3),421-424.
MLA 郭彦君,et al."The multiplicity properties of early-type stars from LAMOST DR8".CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO 55.3(2025):421-424.

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来源：云南天文台

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