| Two extreme contact binary systems in the nearest globular cluster M4 | |
Liu L(刘亮)1,2,3,4 ; Qian SB(钱声帮)1,2,3,4; Fernandez-Lajus, E5; Liu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
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| 发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 2011-08 | |
| 卷号 | 415期号:2页码:1509-1522 |
| DOI | 10.1111/j.1365-2966.2011.18791.x |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Binaries: Eclipsing Blue Stragglers Stars: Evolution Stars: Individual: V47 Stars: Individual: V53 |
| 摘要 | We present the results of photometric solutions for two contact binaries in the nearby globular cluster M4. We estimate their physical parameters using the light-curve program of the Wilson-Devinney code. These systems have quite different mass ratios, which indicates that they did not form at the same time. V47 is an extreme mass-ratio system (q = 0.123 +/- 0.002) being dissimilar to the same kind of field contact binaries. V53 is a high mass-ratio (q = 1.230 +/- 0.004), deep-contact (f = 79.7 +/- 1.9 per cent) system. It is also a blue straggler. |
| 项目资助者 | Chinese Natural Science Foundation [10878012, 10973037, 10903026] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157] ; West Light Foundation of the Chinese Academy of Sciences |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| 归档日期 | 2012-01-23 |
| WOS记录号 | WOS:000293756300042 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | BLUE STRAGGLER STARS ; MASS-RATIO ; STELLAR EVOLUTION ; LIGHT CURVES ; DEEP ; PARAMETERS ; MODELS ; BOOTIS ; IV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5853 |
| 专题 | 双星与变星研究组 中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Liu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P O Box 110, 650011 Kunming, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, China 3.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, China 4.Graduate School of the CAS, Yuquan Road 19, Shijingshan Block, 100049 Beijing, China 5.Facultad de Ciencias Astronómicasy Geofísicas, Universidad Nacional de La Plata and Instituto de Astrofísica de La Plata (CCT La Plata – CONICET/UNLP), Paseo del Bosque s/n, 1900 La Plata, Argentina |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Liu L,Qian SB,Fernandez-Lajus, E,et al. Two extreme contact binary systems in the nearest globular cluster M4[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2011,415(2):1509-1522. |
| APA | Liu L,Qian SB,Fernandez-Lajus, E,&Liu, L .(2011).Two extreme contact binary systems in the nearest globular cluster M4.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,415(2),1509-1522. |
| MLA | Liu L,et al."Two extreme contact binary systems in the nearest globular cluster M4".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 415.2(2011):1509-1522. |
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| Two extreme contact （3467KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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