中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The multi-band CCD photometric investigation of short-period eclipsing binary V1044 Her

文献类型:期刊论文

作者Lu, Hongpeng1,2; Zhang, Liyun1,2; Han, Xianming L.3; Pi, Qingfeng1,2; Wang, Daimei1,2
刊名NEW ASTRONOMY
出版日期2016-10-01
卷号48页码:58-65
ISSN号1384-1076
关键词Stars:Binaries:Eclipsing Stars:Individual V1044 Her Stars Period Variation
DOI10.1016/j.newast.2016.04.006
文献子类Article
英文摘要

We present new CCD photometric observations of V1044 Her obtained on May 22, 23 and 24, 2015. From our data, we derived five new light curve minimum times. Combining our new results with previously available CCD light minimum times, we derived an updated ephemeris and discovered that the period of this binary system exhibits an oscillation. The cyclic variation may be caused by the light-time effect via the presence of a third body or magnetic activity cycle. We calculated the corresponding period of the third body to be 14.1 +/- 1.4 years or magnetic cycle to be 12.2 +/- 0.7 years. We analyzed our new asymmetric light curves to obtain photometric solutions and starspot parameters using the Wilson and Devinney program. The final results show that V1044 Her is a contact binary system with a degree of contact factor f = 3.220(+/- 0.002)%. 

学科主题天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星天文学
URL标识查看原文
出版地PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
WOS关键词CONTACT BINARY ; ORBITAL-PERIOD ; LIGHT-CURVE ; CLOSE BINARIES ; STAR LIGHT ; SYSTEM ; ANDROMEDAE ; CASSIOPEIAE ; MODULATION ; TAURI
资助项目Joint Fund of Astronomy of the National Natural Science Foundation of China ; Chinese Academy of Sciences[U1431114] ; Chinese Academy of Sciences[11263001] ; Joint Fund of Department of Science and Technology of Guizhou Province ; Guizou University[[2014]7642]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000377819100010
资助机构Joint Fund of Astronomy of the National Natural Science Foundation of China ; Chinese Academy of Sciences[U1431114, 11263001] ; Joint Fund of Department of Science and Technology of Guizhou Province ; Guizou University[[2014]7642]
源URL[http://ir.ynao.ac.cn/handle/114a53/9612]  
专题云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Zhang, Liyun
作者单位1.College of Science/Department of Physics & NAOC-GZU-Sponsored Center for Astronomy Research, Guizhou University, Guiyang 550025, PR China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, PR China
3.Department of Physics and Astronomy, Butler University, Indianapolis, IN 46208, USA
推荐引用方式
GB/T 7714
Lu, Hongpeng,Zhang, Liyun,Han, Xianming L.,et al. The multi-band CCD photometric investigation of short-period eclipsing binary V1044 Her[J]. NEW ASTRONOMY,2016,48:58-65.
APA Lu, Hongpeng,Zhang, Liyun,Han, Xianming L.,Pi, Qingfeng,&Wang, Daimei.(2016).The multi-band CCD photometric investigation of short-period eclipsing binary V1044 Her.NEW ASTRONOMY,48,58-65.
MLA Lu, Hongpeng,et al."The multi-band CCD photometric investigation of short-period eclipsing binary V1044 Her".NEW ASTRONOMY 48(2016):58-65.

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来源:云南天文台

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