Frequent Flare Events on the Short-period M-type Eclipsing Binary BX Tri

doi:10.3847/1538-4357/aafafa

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	Frequent Flare Events on the Short-period M-type Eclipsing Binary BX Tri
	Luo,ChangQing 1; Zhang,XiaoBin 1; Wang,Kun 2; Liu,Chao 1; Fang,Xiangsong 3,4; Zhang,Chunguang 1; Deng,Licai 1; Nie,Jundan 1; Fox-Machado,Lester 5; Luo,Yangping 2
刊名	The Astrophysical Journal
	2019-02-01
卷号	871 期号:2
关键词	binaries: eclipsing stars: activity stars: flare stars: individual (BX Tri) stars: late-type
ISSN号	0004-637X
DOI	10.3847/1538-4357/aafafa
英文摘要	Abstract We present long-term, multicolor photometric monitoring and spectroscopic observations of the short-period M-type eclipsing binary BX Tri. Six flare events were recorded over four years from 2014 to 2017. Three of them were detected on one night within an orbital cycle. The strongest one was identified on 2014 December 23. With the amplitudes ΔB?=?0.48 mag, ΔV?=?0.28 mag, ΔR?=?0.10 mag, and ΔI?=?0.02 mag, the total energy due to the flare event was measured to be 4.08 (±0.24)?×?1034 erg, exceeding the superflare level (1034). Based on the observations, the evolutionary status of the binary system and the long-term orbital period changes were analyzed. It reveals that BX Tri is probably a semidetached system with the primary component filling its Roche lobe. The extremely high occurrence of flare events in the binary could be related to rapid mass transfer between the components.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-871-2-AAFAFA
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/25011]
专题	中国科学院国家天文台
作者单位	1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Datun Road 20A, Beijing 100101, People’s Republic of China 2.Department of Astronomy, China West Normal University, Nanchong 637002, People’s Republic of China 3.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China 4.Instituto de Astronomía, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile 5.Observatorio Astronómico Nacional, Instituto de Astronomía–Universidad Nacional Autónoma de México, Ensenada BC, México 6.Department of Astronomy, Beijing Normal University, Beijing, People’s Republic of China
推荐引用方式 GB/T 7714	Luo,ChangQing,Zhang,XiaoBin,Wang,Kun,et al. Frequent Flare Events on the Short-period M-type Eclipsing Binary BX Tri[J]. The Astrophysical Journal,2019,871(2).
APA	Luo,ChangQing.,Zhang,XiaoBin.,Wang,Kun.,Liu,Chao.,Fang,Xiangsong.,...&Niu,Hubiao.(2019).Frequent Flare Events on the Short-period M-type Eclipsing Binary BX Tri.The Astrophysical Journal,871(2).
MLA	Luo,ChangQing,et al."Frequent Flare Events on the Short-period M-type Eclipsing Binary BX Tri".The Astrophysical Journal 871.2(2019).