A period study of the near-contact binary IR Cassiopeiae
文献类型：期刊论文
| 作者 | Zhu, LY; Qian, SB; Xiang, FY |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2004 |
| 卷号 | 56期号:5页码:809-811 |
| 关键词 | stars : binaries : close stars : binaries : eclipse stars : binaries : individual (IR Cassiopeiae) |
| ISSN号 | 0004-6264 |
| 英文摘要 | The near-contact binary IR Cas was observed in 2003 October. Two new observed times of the primary minimum were derived. All of the available eclipse times, including the new ones, spanning 90 years were analyzed. It was shown that the period change of the system is very complex. A period oscillation with a period of 53.24 years and an amplitude of about 0.0133 days were found, while it undergoes a secular decrease at a rate of dP/dt = -1.18 x 10(-7)(+/- 0.09)dyr(-1). The mechanisms that could explain the period changes and the evolutionary state of the system are discussed. |
| WOS关键词 | ORBITAL PERIOD ; CLOSE BINARIES ; MODULATION ; MASS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000225043600009 |
| 出版者 | ASTRONOMICAL SOC JAPAN |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37448]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhu, LY |
| 作者单位 | 1.Chinese Acad Sci, United Lab Opt Astron, ULOAC, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China 3.Xiangtan Univ, Dept Phys, Xiangtan 411105, Hunan Province, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, LY,Qian, SB,Xiang, FY. A period study of the near-contact binary IR Cassiopeiae[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2004,56(5):809-811. |
| APA | Zhu, LY,Qian, SB,&Xiang, FY.(2004).A period study of the near-contact binary IR Cassiopeiae.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,56(5),809-811. |
| MLA | Zhu, LY,et al."A period study of the near-contact binary IR Cassiopeiae".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 56.5(2004):809-811. |
入库方式： OAI收割
来源：国家天文台
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