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Fundamental parameters for double-lined spectroscopic and detached eclipsing binary system J064726.39+223431.6
Kovalev, Mikhail1,2,3; Wang, Song4; Chen XF(陈雪飞)1,2,5; Han ZW(韩占文)1,2,5
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2023-01-09
卷号519期号:4页码:5454-5471
DOI10.1093/mnras/stac3767
产权排序第1完成单位
收录类别SCI ; EI
关键词binaries: spectroscopic stars: fundamental parameters stars: individual: J064726.39+223431.6
摘要

We present a study of the detached eclipsing binary J064726.39 + 223431.6 using spectra from the LAMOST medium resolution spectra and Transiting Exoplanet Survey Satellite photometry. We use full-spectrum fitting to derive radial velocities and spectral parameters: T-effA,T-B = 6177 , 5820 K, V sin i(A,B) = 59,50 km s (-1), and [Fe/H](A,B) = -0.19 dex. The orbital solution and light-curve analysis suggest that it is a close pair of fast rotating stars on a circular orbit. We measure their masses to be M-A,M-B = 1.307 +/- 0.007, 1.129 +/- 0.005 Me and their radii to be R-A,R-B = 1.405 +/- 0.052, 1.219 +/- 0.060 R-?, resulting in surface gravities of log (g)(A,B) = 4.259 +/- 0.033, 4.319 +/- 0.042 (cgs). Theoretical models cannot match all of these properties, predicting significantly higher T-eff for a given metallicity. The derived age of the system is 1.56 Gyr, which indicates that both components are younger than Sun, which contradicts to much longer orbit's circularization time-scale.

资助项目Natural Science Foundation of China[11733008] ; Natural Science Foundation of China[12090040] ; Natural Science Foundation of China[12090043] ; Natural Science Foundation of China[11521303] ; Natural Science Foundation of China[12125303] ; Natural Science Foundation of China[12273057] ; Youth Innovation Promotion Association of the CAS[2019057] ; National Development and Reform Commission ; NASA's Science Mission directorate ; National Science Foundation[AST-2034437] ; Caltech, IPAC ; Weizmann Institute for Science ; Oskar Klein Center at Stockholm University ; University of Maryland ; Deutsches Elektronen-Synchrotron ; Humboldt University ; TANGO Consortium of Taiwan ; University of Wisconsin at Milwaukee ; Trinity College Dublin ; Lawrence Livermore National Laboratories ; IN2P3, France ; National Aeronautics and Space Administration
项目资助者Natural Science Foundation of China[11733008, 12090040, 12090043, 11521303, 12125303, 12273057] ; Youth Innovation Promotion Association of the CAS[2019057] ; National Development and Reform Commission ; NASA's Science Mission directorate ; National Science Foundation[AST-2034437] ; Caltech, IPAC ; Weizmann Institute for Science ; Oskar Klein Center at Stockholm University ; University of Maryland ; Deutsches Elektronen-Synchrotron ; Humboldt University ; TANGO Consortium of Taiwan ; University of Wisconsin at Milwaukee ; Trinity College Dublin ; Lawrence Livermore National Laboratories ; IN2P3, France ; National Aeronautics and Space Administration
语种英语
学科领域天文学 ; 恒星与银河系 ; 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
ISSN0035-8711
URL查看原文
WOS记录号WOS:000919580400001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SAMPLING MODEL ATMOSPHERES ; ACCURATE MASSES ; MAFAGS-OS ; F-STAR ; A-STAR ; COMPONENT ; SPECTRA ; RADII
EI入藏号20232214158912
EI主题词Stars
EI分类号657.2 Extraterrestrial Physics and Stellar Phenomena
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/25826
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Kovalev, Mikhail
作者单位1.Yunnan Observatories, China Academy of Sciences, Kunming 650216, China;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
3.Sternberg Astronomical Institute, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia;
4.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China;
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
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Kovalev, Mikhail,Wang, Song,Chen XF,et al. Fundamental parameters for double-lined spectroscopic and detached eclipsing binary system J064726.39+223431.6[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,519(4):5454-5471.
APA Kovalev, Mikhail,Wang, Song,Chen XF,&Han ZW.(2023).Fundamental parameters for double-lined spectroscopic and detached eclipsing binary system J064726.39+223431.6.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,519(4),5454-5471.
MLA Kovalev, Mikhail,et al."Fundamental parameters for double-lined spectroscopic and detached eclipsing binary system J064726.39+223431.6".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 519.4(2023):5454-5471.
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