A COMPREHENSIVE PHOTOMETRIC STUDY OF THE CONTACT BINARY GN BOO WITH POSSIBLE MAGNETIC ACTIVITIES
文献类型：期刊论文
| 作者 | Wang JJ(王晶晶)1,2,3 ; Qian SB(钱声帮)1,2,3; Zhang, YP4; Zhang J(张嘉)1,2,3; He JJ(何家佳)1,2,3; Zhao EG(赵二刚)1,2,3; Zhu LY(朱俐颖)1,2,3; Liao WP(廖文萍)1,2,3; Liu L(刘亮)1,2,3
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2015-05 |
| 卷号 | 149期号:5 |
| 关键词 | binaries: close stars: activity stars: evolution stars: individual (GN Boo) |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Wang, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650216, Peoples R China. |
| 英文摘要 | Multi-color photometric data of GN Boo observed from 2010 to 2013 are presented. The intrinsic variations of the light curves are remarkable, and their phenomena are probable evidence of stronger magnetic activities on the surfaces of the components. Based on all CCD times of minimum light, a secular increase superimposed on a cyclic oscillation is found. The orbital period increases at a rate of dP/dt = + 1.74 x 10(-7) days yr(-1), which can be explained by mass transfer from the less massive component to the more massive one. The period and amplitude of the cyclic variation are P = 9.5632 yr and A = 0.0046 days, respectively, which correspond to the previous published results. Using the 2010 version of the W-D code, five sets of photometric solutions were derived from our new data. The results imply that the stellar spot, the degree of fill-out, and the temperature difference Delta T between the components of GN Boo are variable. It is inferred that the magnetic activities perhaps influence the outer radius of the component, causing the temperature of the component star and the level of contact to change. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ECLIPSING BINARY ; LIGHT CURVES ; VELOCITY CURVES ; OPTICAL FLARES ; PERIOD CHANGES ; URSAE MAJORIS ; STAR LIGHT ; EVOLUTION ; COMPONENT ; SYSTEMS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/149/5/164/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000354065200015 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5919]  |
| 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 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650216 Kunming, China 3.Graduate School of the Chinese Academy of Sciences, Yuquan Road 19, Shijingshan Block, 100049 Beijing, China 4.Department of Astronomy, Beijing Normal University, 100875 Beijing, China |
| 推荐引用方式 GB/T 7714 | Wang JJ,Qian SB,Zhang, YP,et al. A COMPREHENSIVE PHOTOMETRIC STUDY OF THE CONTACT BINARY GN BOO WITH POSSIBLE MAGNETIC ACTIVITIES[J]. ASTRONOMICAL JOURNAL,2015,149(5). |
| APA | Wang JJ.,Qian SB.,Zhang, YP.,Zhang J.,He JJ.,...&Liu L.(2015).A COMPREHENSIVE PHOTOMETRIC STUDY OF THE CONTACT BINARY GN BOO WITH POSSIBLE MAGNETIC ACTIVITIES.ASTRONOMICAL JOURNAL,149(5). |
| MLA | Wang JJ,et al."A COMPREHENSIVE PHOTOMETRIC STUDY OF THE CONTACT BINARY GN BOO WITH POSSIBLE MAGNETIC ACTIVITIES".ASTRONOMICAL JOURNAL 149.5(2015). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。