Institutional Repository System Of Yunnan Observatories, CAS
| A Study on the Orbital Period Variation of AR Lacertae | |
Lu, Ye1,2; Xiang, Fu-Yuan1,2 ; Shi, Xiao-Min1,2
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| 发表期刊 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 2012-08-25 | |
| 卷号 | 64期号:4 |
| DOI | 10.1093/pasj/64.4.84 |
| 收录类别 | SCI |
| 关键词 | Stars: Binaries: Eclipsing Stars: Binaries: Orbital Period StArs: Individual (Ar Lacertae) |
| 摘要 | In this paper, we collect all available times of the light minimum of AR Lac from the literature and databases. Through an analysis of the O - C curve by a weighted least-squares method, we found that the orbital period of the system shows a cyclic oscillation with a period of 50.93 yr superimposed on a long-term secular period decrease at a rate of dP/dt = -(2.128 +/- 0.060) x 10(-9) d/d. Since both components of AR Lac are late-type stars, and show strong Ca H and K emission lines, the orbital period variation may be caused by the magnetic activity of the system. |
| 资助项目 | Chinese Natural Science Foundations[10878012] ; Chinese Natural Science Foundations[11173019] ; Chinese Natural Science Foundations[11133007] ; Chinese Natural Science Foundations[10903007] ; Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences |
| 项目资助者 | Chinese Natural Science Foundations[10878012, 11173019, 11133007, 10903007] ; Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 |
| 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 |
| WOS记录号 | WOS:000309296600021 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | RS-CANUM-VENATICORUM ; CLOSE BINARIES ; PHOTOELECTRIC PHOTOMETRY ; SYSTEMS ; LAC ; MODULATION ; CYCLES |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/9432 |
| 专题 | 中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Lu, Ye |
| 作者单位 | 1.Department of Physics, Xiangtan University, 411105 Xiangtan, Hunan Province, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, China |
| 推荐引用方式 GB/T 7714 | Lu, Ye,Xiang, Fu-Yuan,Shi, Xiao-Min. A Study on the Orbital Period Variation of AR Lacertae[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2012,64(4). |
| APA | Lu, Ye,Xiang, Fu-Yuan,&Shi, Xiao-Min.(2012).A Study on the Orbital Period Variation of AR Lacertae.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,64(4). |
| MLA | Lu, Ye,et al."A Study on the Orbital Period Variation of AR Lacertae".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 64.4(2012). |
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| A Study on the Orbit（117KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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