A period study of the near-contact binary IR Cassiopeiae
文献类型：期刊论文
| 作者 | Zhu LY(朱俐颖)1,2,4 ; Qian SB(钱声帮)1,2; Xiang, FY3
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 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 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 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] | ORBITAL PERIOD ; CLOSE BINARIES ; MODULATION ; MASS |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/56/5/809 |
| 语种 | 英语 |
| WOS记录号 | WOS:000225043600009 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5772]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, P. R. China 3.Physics Department, Xiangtan University, 411105 Xiangtan, Hunan Province, P. R. China 4.Graduate School of the Chinese Academy of Sciences, P. 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. |
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来源：云南天文台
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