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Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488
Shi XD(施相东)1,2,3,4; Qian SB(钱声帮)1,2,3,4; Li LJ(李临甲)1,3,4; Liu NP(刘念平)1,3,4
发表期刊The Astronomical Journal
2021-01
卷号161期号:1页码:9
DOI10.3847/1538-3881/abccd7
产权排序第1完成单位
收录类别SCI
关键词Close binary stars Eclipsing binary stars Eclipsing binary minima timing method Pulsating variable stars
摘要

The continuous and unbroken time-series photometry data of Kepler and the Transiting Exoplanet Survey Satellite (TESS) provide a good opportunity to study the continuous variations in the light curve of binary stars. This paper reports the discoveries of the correlation between the two maxima on the light curve of KIC 06852488 and the correlation between the O’Connell effect and the O ? C curve. The Max I and Max II vary with a same cycle length of ~2000 days and a 180° phase difference, and the variation of the Max II coincides with the O ? C curve of the primary light minima. After analyzing the Kepler and TESS light curves, it is detected that this binary is a semi-detached system with a mass ratio of 0.4622(±0.0036). The secondary component is filling its critical Roche lobe, while the primary component is only filling 12.25(±0.10)% of the lobe volume that contributes more than 85% luminosity of the total system. The variation of the O’Connell effect could be explained by an evolving hot spot on the primary component and an evolving cool spot on the secondary component. It is found that their positions are symmetrical with the inner Lagrange L1 point. After subtracting the binary brightness changes, six optical flares are detected that come from the cool secondary. We calculated the energy of flares and found that all of the flares are superflares. Both the flares and an evolving dark spot on the lobe-filling secondary component make the system a very interesting source to investigate the effects of binary interaction on the magnetic activities.

资助项目Chinese Natural Science Foundation[11933008] ; Chinese Natural Science Foundation[11803084]
项目资助者Chinese Natural Science Foundation[11933008, 11803084]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星形成与演化
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
WOS记录号WOS:000601414400001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]INITIAL CHARACTERISTICS ; LIGHT ; TELESCOPE ; EVOLUTION
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/23995
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Shi XD(施相东)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People's Republic of China
2.University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, People's Republic of China
3.Key Laboratory of the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China
4.Center for Astronomical Mega-Science, CAS, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of 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
推荐引用方式
GB/T 7714
Shi XD,Qian SB,Li LJ,et al. Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488[J]. The Astronomical Journal,2021,161(1):9.
APA Shi XD,Qian SB,Li LJ,&Liu NP.(2021).Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488.The Astronomical Journal,161(1),9.
MLA Shi XD,et al."Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488".The Astronomical Journal 161.1(2021):9.
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