THE FIRST PHOTOMETRIC ANALYSIS OF THE NEAR CONTACT BINARY IR Cas
文献类型：期刊论文
| 作者 | Li, Kai1,2 ; Hu, S. -M.1; Guo, D. -F.1; Jiang, Y. -G.1; Gao, D. -Y.1; Chen, X.1
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2014-11 |
| 卷号 | 148期号:5 |
| ISSN号 | 0004-6256 |
| 关键词 | binaries: close binaries: eclipsing stars: individual (IR Cas) |
| 通讯作者 | Li, K (reprint author), Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China. |
| 英文摘要 | The first photometric analysis of IR Cas was carried out based on the new observed BVRI light curves. The symmetric light curves and nearly flat secondary minimum indicate that very precise photometric results can be determined. We found that IR Cas is a near contact binary with the primary component filling its Roche lobe. An analysis of the O - C diagram based on all available times of minimum light reveals evidence for a periodic change with a semi-amplitude of 0.0153 days and a period of 39.7 yr superimposed on a secular decrease at a rate of dp/dt = -1.28(+/- 0.09) x 10(-7) days yr(-1). The most reasonable explanation for the periodic change is the light time-travel effect due to a third body. The period decrease may be caused by mass transfer from the primary component to the secondary. With the decreasing period, IR Cas would eventually evolve into a contact system. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | URSAE MAJORIS SYSTEMS ; LIGHT CURVES ; BO PEGASI ; STARS ; CASSIOPEIAE ; EVOLUTION ; PERIOD ; STAGE ; CYG |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/148/5/96/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000344141200022 |
| 公开日期 | 2016-06-01 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9449]  |
| 专题 | 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.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China (K.L.) (S.-M.H.) (D.-F.G.) 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Li, Kai,Hu, S. -M.,Guo, D. -F.,et al. THE FIRST PHOTOMETRIC ANALYSIS OF THE NEAR CONTACT BINARY IR Cas[J]. ASTRONOMICAL JOURNAL,2014,148(5). |
| APA | Li, Kai,Hu, S. -M.,Guo, D. -F.,Jiang, Y. -G.,Gao, D. -Y.,&Chen, X..(2014).THE FIRST PHOTOMETRIC ANALYSIS OF THE NEAR CONTACT BINARY IR Cas.ASTRONOMICAL JOURNAL,148(5). |
| MLA | Li, Kai,et al."THE FIRST PHOTOMETRIC ANALYSIS OF THE NEAR CONTACT BINARY IR Cas".ASTRONOMICAL JOURNAL 148.5(2014). |
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。