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Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination

文献类型：期刊论文

作者Wang ZL(王洲林)1,2; Mikhail, Kovalev1,3,4,5; Xiong JP(熊建萍)1,3,4; Guo YJ(郭彦君)1,3,4; Chen XF(陈雪飞)1,3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2025-06
卷号539期号:4页码:3506-3517
关键词light pollution techniques : spectroscopic binaries : spectroscopic
ISSN号0035-8711
DOI10.1093/mnras/staf531
产权排序第1完成单位
文献子类Article
英文摘要We present a method for identifying false positive double-lined spectroscopic binary (SB2) candidates by analysing medium-resolution survey spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR10. Specifically, we focus on spectra contaminated by moonlight, which exhibit near-zero radial velocity (RV) and solar-like spectral lines from the secondary component. By applying strict constraints on the contamination parameters and fitting the contaminated spectra, we ultimately confirmed that 126 false positive binaries are single stars contaminated by moonlight. Additionally, we identify several key factors contributing to moonlight contamination: the lunar phase during observation, the G-band magnitude of the star, and the angular distance between the star and the moon. Notably, artificial satellites in low-orbital can also introduce contamination from solar-like spectral components, but they typically display significantly higher transverse velocities. In a follow-up study, we will expand our analysis to identify additional false positive SB2 systems and systematically classify them according to their contamination sources.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词SN ECLIPSING BINARIES ; VALUE-ADDED CATALOG ; GENEVA-COPENHAGEN SURVEY ; SOLAR-TYPE STARS ; STATISTICAL PROPERTIES ; MULTIPLICITY ; CANDIDATES ; NEIGHBORHOOD ; TRIPLE
资助项目National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12125303]; National Natural Science Foundation of China[12090040/3]; National Natural Science Foundation of China[2021YFA1600403]; National Key R&D Program of China[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory[202305AB350003]; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202201BC070003]; Natural Science Foundation of Yunnan Province
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001486783100001
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of China[12288102, 12125303, 12090040/3] ; National Natural Science Foundation of China[2021YFA1600403] ; National Key R&D Program of China[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory[202305AB350003] ; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202201BC070003] ; Natural Science Foundation of Yunnan Province
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28302]  
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.Yunnan Observatories, Chinese Academy of Sciences, 396 YangFangWang, Guandu District, Kunming 650216, People’s Republic of China;
2.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People’s Republic of China;
3.School of Astronomy and Space Science, University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China;
4.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, People’s Republic of China;
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
推荐引用方式
GB/T 7714		 Wang ZL,Mikhail, Kovalev,Xiong JP,et al. Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2025,539(4):3506-3517.
APA 王洲林,Mikhail, Kovalev,熊建萍,郭彦君,&陈雪飞.(2025).Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,539(4),3506-3517.
MLA 王洲林,et al."Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 539.4(2025):3506-3517.

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