GJ 3236: An active red-dwarf eclipsing binary system

doi:10.1016/j.newast.2022.101831

YNAO OpenIR > 双星与变星研究组

	GJ 3236: An active red-dwarf eclipsing binary system
	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)3,4
发表期刊	NEW ASTRONOMY
	2022-10
卷号	96
DOI	10.1016/j.newast.2022.101831
产权排序	第3完成单位
收录类别	SCI
关键词	Red dwarf Eclipsing binary Flares Magnetic activity cycle
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.
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
项目资助者	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
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Article
出版者	ELSEVIER
出版地	RADARWEG 29a, 1043 NX AMSTERDAM, NETHERLANDS
ISSN	1384-1076
URL	查看原文
WOS记录号	WOS:000798229700001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	LOW-MASS STARS ; MAGNETIC ACTIVITY ; OPTICAL FLARES ; RS CVN ; EVOLUTION ; LIGHT
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/25198
专题	双星与变星研究组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.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China; 5.University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, China; 6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, 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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