A Study on the Orbital Period Variation of AR Lacertae
文献类型：期刊论文
| 作者 | Lu, Ye1,2; Xiang, Fu-Yuan1,2 ; Shi, Xiao-Min1,2
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2012-08-25 |
| 卷号 | 64期号:4 |
| 关键词 | stars: binaries: eclipsing stars: binaries: orbital period stars: individual (AR Lacertae) |
| ISSN号 | 0004-6264 |
| 通讯作者 | Lu, Y (reprint author), Xiangtan Univ, Dept Phys, Xiangtan 411105, Hunan, Peoples R China. |
| 英文摘要 | 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. |
| 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] | RS-CANUM-VENATICORUM ; CLOSE BINARIES ; PHOTOELECTRIC PHOTOMETRY ; SYSTEMS ; LAC ; MODULATION ; CYCLES |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/64/4/84 |
| 语种 | 英语 |
| WOS记录号 | WOS:000309296600021 |
| 公开日期 | 2016-06-01 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9432]  |
| 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.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). |
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。