Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488
文献类型:期刊论文
作者 | 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 |
刊名 | The Astronomical Journal |
出版日期 | 2021-01 |
卷号 | 161期号:1 |
ISSN号 | 0004-6256 |
关键词 | Close binary stars Eclipsing binary stars Eclipsing binary minima timing method Pulsating variable stars |
DOI | 10.3847/1538-3881/abccd7 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | INITIAL CHARACTERISTICS ; LIGHT ; TELESCOPE ; EVOLUTION |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000601414400001 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/23994] |
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 | 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 |
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). |
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). |
MLA | Shi XD,et al."Flaring and Spot Activities on the Semi-detached Binary System KIC 06852488".The Astronomical Journal 161.1(2021). |
入库方式: OAI收割
来源:云南天文台
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