Magnetic activity on two contact binaries: VW Boo and V1128 Tau from TESS data | |
Han, Quan-Wang2; Jiang DK(姜登凯)1,3,4 | |
刊名 | NEW ASTRONOMY |
2024-02 | |
卷号 | 106 |
关键词 | Stars: binaries: eclipsing Stars: activity Stars: star spots Stars: individuals (VW Boo, V1128 Tau) |
ISSN号 | 1384-1076 |
DOI | 10.1016/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 |
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关键词 | RADIAL-VELOCITY ; STAR LIGHT ; SYSTEM |
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] |
内容类型 | 期刊论文 |
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 |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, 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.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 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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