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GJ 3236: An active red-dwarf eclipsing binary system

文献类型：期刊论文

作者Zhang, B.1,2; Qian SB(钱声帮)1,2,3,4,5,6; Zhi, Q.-J.1,2; Dong, A.-J.1,2; Zhu LY(朱俐颖)4,5
刊名NEW ASTRONOMY
出版日期2022-10
卷号96
ISSN号1384-1076
关键词Red dwarf Eclipsing binary Flares Magnetic activity cycle
DOI10.1016/j.newast.2022.101831
产权排序第3完成单位
文献子类Article
英文摘要

GJ 3236 is a low-mass red-dwarf eclipsing binary (EB) with two M4V components. In this paper, new photometric light curves (LCs) of GJ 3236 are presented and analyzed by using the 2013 version of the Wilson-Devinney (W-D) code. Our photometric solutions suggest that GJ 3236 is an active detached EB system with strong magnetic field. Since 2009, we have monitored this target more than 10 years and obtained 22 mid-eclipse times with high precision. By using the O-C method, we revised its period as 0.7712562 days. According to Applegate mechanism, the O-C diagram of GJ 3236 should show a quasi-periodic variation, however, it does not now. Based on these, we thought that it is possible evolved through the accretion of circumstellar matter. Besides, both of components of GJ 3236 present a similar radius inflation, which could be explained by the strong magnetic activity.

学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地RADARWEG 29a, 1043 NX AMSTERDAM, NETHERLANDS
WOS关键词LOW-MASS STARS ; MAGNETIC ACTIVITY ; OPTICAL FLARES ; RS CVN ; EVOLUTION ; LIGHT
资助项目Joint Research Fund in Astronomy, China[U1931101] ; Joint Research Fund in Astronomy, China[U1831120] ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; NSFC[11933008] ; Guizhou Provincial Science and Technology Foundation, China ; foundation of Guizhou Provincial Education Department, China[KY (2020) 003] ; Open Project Program of the CAS Key Laboratory of Optical Astronomy, China ; National Astronomical Observatories, China ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:000798229700001
资助机构Joint Research Fund in Astronomy, China[U1931101, U1831120] ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; NSFC[11933008] ; Guizhou Provincial Science and Technology Foundation, China[[2020] 1Y017] ; foundation of Guizhou Provincial Education Department, China[KY (2020) 003] ; Open Project Program of the CAS Key Laboratory of Optical Astronomy, China ; National Astronomical Observatories, China ; Chinese Academy of Sciences
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25198]  
专题云南天文台_双星与变星研究组
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Zhang, B.
作者单位1.School of Physics and Electronic Science, Guizhou Normal University, 550025 Guiyang, China;
2.Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang 550025, China;
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China
4.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, China;
5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China;
6.University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, China;
推荐引用方式
GB/T 7714		 Zhang, B.,Qian SB,Zhi, Q.-J.,et al. GJ 3236: An active red-dwarf eclipsing binary system[J]. NEW ASTRONOMY,2022,96.
APA Zhang, B.,Qian SB,Zhi, Q.-J.,Dong, A.-J.,&Zhu LY.(2022).GJ 3236: An active red-dwarf eclipsing binary system.NEW ASTRONOMY,96.
MLA Zhang, B.,et al."GJ 3236: An active red-dwarf eclipsing binary system".NEW ASTRONOMY 96(2022).

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来源：云南天文台

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