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Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST

文献类型：期刊论文

作者He, Tongyu4,5; Li J(李蛟)3,4; Li JD(李江丹)2,3,4; Xiong JP(熊建萍)2,3,4; Zhang, Xiaobin1; Kovalev, Mikhail3; Cheng QY(程其原)3; Guo SF(郭素芬)3,7; Yang, Mingkuan1; Chen XF(陈雪飞)3,3,4,6
刊名ASTRONOMICAL JOURNAL
出版日期2025-02-03
卷号169期号:2
ISSN号0004-6256
DOI10.3847/1538-3881/ad9915
产权排序第3完成单位
文献子类Article
英文摘要Triple star systems are critical for understanding stellar dynamics and compact objects in astrophysics, yet confirmed hierarchical triples identified via spectroscopy remain limited. In this study, we identified 23 triple systems by cross matching the Gaia DR3 non-single-star catalog with Large Sky Area Multi-Object Fiber Spectroscopic Telescope DR10 spectroscopic data, 18 of them are new discoveries. For two well-observed triples, we performed radial velocity curve fitting and light curve analysis to determine their orbital parameters, with inner and outer periods of 1.26 and 656 days for one triple, and 3.42 and 422 days for the other. And we compared the results with other studies. We also analyzed the radial velocities of these 23 tripls, revealing a range of Delta V from approximately 40-210 km s-1. Due to spectral resolution and detection limitations, velocity differences below 45 km s-1 in binaries and below 90 km s-1 in the inner binaries of triple systems are challenging to detect. Consequently, our detection range for inner orbital periods is restricted to 0.2-20 days, with the highest efficiency for periods under 10 days. These findings underscore the advantage of spectroscopic observations for identifying triple systems with short inner orbital periods.
学科主题天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词MASS-RATIO DISTRIBUTION ; LIGHT CURVES ; STELLAR ; BINARIES ; MULTIPLICITY ; SPECTRA ; IMPACT
资助项目National Natural Science Foundation of China[12125303]; National Natural Science Foundation of China[12090040/3]; National Natural Science Foundation of China[12373037]; National Natural Science Foundation of China[12403040]; National Natural Science Foundation of China[12303106]; National Key R&D Program of China[2021YFA1600400]; Natural Science Foundation of Yunnan Province[202001AW070007]; International Centre of Supernovae, Yunnan Key Laboratory; Postdoctoral Fellowship Program of CPSF; National Development and Reform Commission; NASA's Explorer Program;
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001395677200001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China[12125303, 12090040/3, 12373037, 12403040, 12303106] ; National Key R&D Program of China[2021YFA1600400] ; Natural Science Foundation of Yunnan Province[202001AW070007] ; International Centre of Supernovae, Yunnan Key Laboratory ; Postdoctoral Fellowship Program of CPSF ; National Development and Reform Commission ; NASA's Explorer Program ; [12288102] ; [2021YFA1600403/1] ; [202201BC070003] ; [202305AB350003] ; [GZC20232976]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27983]  
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
作者单位1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China;
3.Yunnan Observatories, Chinese Academy of Sciences (CAS), 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China;
4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, People's Republic of China;
5.College of Physics Science and Technology, Hebei University, Baoding 071002, People's Republic of China;
6.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; zhanwenhan@ynao.ac.cn
7.School of Physics and Technology, Xinjiang University, Urumqi 830046, People's Republic of China;
推荐引用方式
GB/T 7714		 He, Tongyu,Li J,Li JD,et al. Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST[J]. ASTRONOMICAL JOURNAL,2025,169(2).
APA He, Tongyu.,李蛟.,李江丹.,熊建萍.,Zhang, Xiaobin.,...&韩占文.(2025).Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST.ASTRONOMICAL JOURNAL,169(2).
MLA He, Tongyu,et al."Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST".ASTRONOMICAL JOURNAL 169.2(2025).

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来源：云南天文台

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