The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes
文献类型：期刊论文
| 作者 | Liu Liang1; Qian Sheng-Bang; He Jia-Jia; Liao Wen-Ping; Zhu Li-Ying; Zhao Ergang |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2012-06-25 |
| 卷号 | 64期号:3页码:6 |
| 关键词 | stars: binaries: close stars: binaries: eclipsing stars: evolution stars: individual (FU Draconis) |
| ISSN号 | 0004-6264 |
| 英文摘要 | 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. |
| WOS关键词 | THERMAL RELAXATION OSCILLATION ; URSAE MAJORIS SYSTEMS ; STARS ; COMPONENTS |
| 资助项目 | Chinese Natural Science Foundation[11103074 10973037] ; Chinese Natural Science Foundation[10903026] ; West Light Foundation of the Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000305868200006 |
| 出版者 | ASTRONOMICAL SOC JAPAN |
| 资助机构 | Chinese Natural Science Foundation ; Chinese Natural Science Foundation ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Chinese Natural Science Foundation ; Chinese Natural Science Foundation ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Chinese Natural Science Foundation ; Chinese Natural Science Foundation ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Chinese Natural Science Foundation ; Chinese Natural Science Foundation ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/21278]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Liu Liang |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China 2.Chinese Acad Sci ULOAC, United Lab Opt Astron, Beijing 100012, Peoples R China 3.Grad Sch CAS, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kuntning 650011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Liang,Qian Sheng-Bang,He Jia-Jia,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):6. |
| APA | Liu Liang,Qian Sheng-Bang,He Jia-Jia,Liao Wen-Ping,Zhu Li-Ying,&Zhao Ergang.(2012).The Active Contact Binary FU Draconis: Four Color Light Curves and Period Changes.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,64(3),6. |
| MLA | Liu Liang,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):6. |
入库方式： OAI收割
来源：国家天文台
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。