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Magnetic activity on two contact binaries: VW Boo and V1128 Tau from TESS data

文献类型：期刊论文

作者Han, Quan-Wang2; Jiang DK(姜登凯)1,3,4
刊名NEW ASTRONOMY
出版日期2024-02
卷号106
ISSN号1384-1076
关键词Stars: binaries: eclipsing Stars: activity Stars: star spots Stars: individuals (VW Boo, V1128 Tau)
DOI10.1016/j.newast.2023.102136
产权排序第2完成单位
文献子类Article
英文摘要Using the continuous TESS data, we found small intrinsic variations in the light curves of VW Boo and V1128 Tau. We selected five sets of light curves and derived the photometric solutions by using the Wilson-Devinney code. The results indicate that the intrinsic light curve variations in VW Boo are attributed to the evolution of a cool spot. In the case of V1128 Tau, the disappearance or reappearance of a cool spot might account for the variation in three sets of light curves. The obtained solutions also reveal that these two systems are W-type shallow-contact binaries (f <= 15%). Period analyses for these two systems were carried out based on all available times of minimum. The period analysis of VW Boo shows that its period is decreasing at a rate of dP/dt = -1.52x10(-7) d yr(-1), together with a cyclic oscillation with a period of 27.17 yr and a semi-amplitude of 0.0063 d. Similarly, the orbital period of V1128 Tau also shows a secular decrease (dP/dt = -1.40x10(-7) d yr(-1)), accompanied by a cyclic oscillation (P-3= 16.11 yr and K-3 = 0.0011 d). The secular decrease might be caused by mass transfer, while the cyclic oscillation might result from the presence of a third body or magnetic activity.
学科主题天文学
URL标识查看原文
出版地RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
WOS关键词RADIAL-VELOCITY ; STAR LIGHT ; SYSTEM
资助项目National Key R&D Program of China[2021YFA1600403]; National Natural Science Foundation of China[12073070]; National Natural Science Foundation of China[11733008]; National Natural Science Foundation of China[12333008]; National Natural Science Foundation of China[12288102]; Western Light Project of CAS[XBZG-ZDSYS-202117]; International Centre of Supernovae, Yun-nan Key Laboratory[202302AN360001]; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202305AB350003]; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project; China Manned Space Project[CMS-CSST-2021-A08]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:001106787400001
资助机构National Key R&D Program of China[2021YFA1600403] ; National Natural Science Foundation of China[12073070, 11733008, 12333008, 12288102] ; Western Light Project of CAS[XBZG-ZDSYS-202117] ; International Centre of Supernovae, Yun-nan Key Laboratory[202302AN360001] ; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202305AB350003] ; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project ; China Manned Space Project[CMS-CSST-2021-A08]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/26426]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China;
2.School of Physics and Electronics, Qiannan Normal University for Nationalities, Duyun 558000, People’s Republic of China;
3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People’s Republic of China;
4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People’s Republic of China
推荐引用方式
GB/T 7714		 Han, Quan-Wang,Jiang DK. Magnetic activity on two contact binaries: VW Boo and V1128 Tau from TESS data[J]. NEW ASTRONOMY,2024,106.
APA Han, Quan-Wang,&姜登凯.(2024).Magnetic activity on two contact binaries: VW Boo and V1128 Tau from TESS data.NEW ASTRONOMY,106.
MLA Han, Quan-Wang,et al."Magnetic activity on two contact binaries: VW Boo and V1128 Tau from TESS data".NEW ASTRONOMY 106(2024).

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来源：云南天文台

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