The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes | |
Liu L(刘亮)1,2,3,4; Qian SB(钱声帮)1,2,3,4; He JJ(何家佳)1,2,3,4; Liao WP(廖文萍)1,2,3,4; Zhu LY(朱俐颖)1,2,3,4; Zhao EG(赵二刚)1,2,3,4 | |
发表期刊 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN |
2012-06-25 | |
卷号 | 64期号:3页码:48-53 |
DOI | 10.1093/pasj/64.3.48 |
产权排序 | 第1完成单位 |
收录类别 | SCI ; EI |
关键词 | Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Evolution Stars: Individual (Fu Draconis) |
摘要 | Secured four color light curves of FU Dra were analyzed with the 2003 version of the Wilson and Devinney (WD) code. It was shown that FU Dra is still a W-type contact binary system, but might have a high fill-out factor (f = 26.7% +/- 1.0%). A dark spot was introduced on the massive cool component. A period investigation based on all available data shows that the period of the system may include a long-term increase (dP/dt = 8.8 +/- 2.9 x 10(-8) d yr(-1)) and an oscillation (semi-amplitude of 0.0024 d, P-3 = 7.8 yr). The long-term period decrease may be caused by mass transfer, though the periodic oscillation may be rooted in cyclic magnetic activity. |
资助项目 | Chinese Natural Science Foundation[11103074] ; Chinese Natural Science Foundation[10973037] ; Chinese Natural Science Foundation[10903026] ; West Light Foundation of the Chinese Academy of Sciences |
项目资助者 | Chinese Natural Science Foundation[11103074, 10973037, 10903026] ; West Light Foundation of the Chinese Academy of Sciences |
语种 | 英语 |
学科领域 | 天文学 ; 恒星与银河系 ; 恒星天文学 |
学科门类 | 理学 ; 理学::天文学 |
文章类型 | Article |
出版者 | OXFORD UNIV PRESS |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
ISSN | 0004-6264 |
URL | 查看原文 |
归档日期 | 2012-11-06 |
WOS记录号 | WOS:000305868200006 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | THERMAL RELAXATION OSCILLATION ; URSAE MAJORIS SYSTEMS ; STARS ; COMPONENTS |
EI入藏号 | 20215211378988 |
EI主题词 | Mass transfer |
EI分类号 | 641.3 Mass Transfer - 657.2 Extraterrestrial Physics and Stellar Phenomena |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5867 |
专题 | 双星与变星研究组 中国科学院天体结构与演化重点实验室 |
通讯作者 | Liu L(刘亮) |
作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P. O. Box 110, Kunming 650011, P. R. China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), Beijing 100012, P. R. China 3.Graduate School of the CAS, Yuquan Road 19#, Shijingshan Block, Beijing 100049, P. R. China 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, P. R. China |
第一作者单位 | 中国科学院云南天文台 |
通讯作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Liu L,Qian SB,He JJ,et al. The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2012,64(3):48-53. |
APA | Liu L,Qian SB,He JJ,Liao WP,Zhu LY,&Zhao EG.(2012).The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,64(3),48-53. |
MLA | Liu L,et al."The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 64.3(2012):48-53. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
The Active Contact B(528KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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