twoparticulareatypebinariesintheglobularclustercentauri
文献类型：期刊论文
| 作者 | Li Kai; Qian Shengbang |
| 刊名 | researchinastronomyandastrophysics
 |
| 出版日期 | 2013 |
| 卷号 | 000期号:007页码:827 |
| ISSN号 | 1674-4527 |
| 英文摘要 | We analyzed the B and V light curves of two EA-type binaries V211 and NV358 for the first time using the Wilson-Devinney code. Our analysis shows that V211 is a typical Algol-type binary and NV358 is a well detached binary system. As the two binaries are definite members of ω Centauri due to their proper motion, we estimated their physical parameters, obtaining M1 = 1.13 4±0.03 M⊙, R1 = 0.98±0.01 R⊙, M2 = 0.33 ±0.01 M⊙ and R2 = 0.92 ±0.01 R⊙ forV211; M1 = 1.304-0.05 M⊙, R1 = 1.03±0.01 R⊙, M2 = 0.58±0.02 M⊙ and R2 = 0.78±0.01 R⊙ for NV358. On the color-magnitude diagram of ω Centauri, V211 is located in the faint blue straggler region and its primary component is more massive than a star at the main-sequence turnoff. Therefore, V211 is a blue straggler and was formed by mass transfer from the secondary component to the primary. The age of NV358 is less than 1.93 Gyr, indicating that it is much younger than the first generation of stars in ω Centaufi. Like NV364 in ω Centaufi, NV358 should be a second-generation binary. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/44485]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Li Kai,Qian Shengbang. twoparticulareatypebinariesintheglobularclustercentauri[J]. researchinastronomyandastrophysics,2013,000(007):827. |
| APA | Li Kai,&Qian Shengbang.(2013).twoparticulareatypebinariesintheglobularclustercentauri.researchinastronomyandastrophysics,000(007),827. |
| MLA | Li Kai,et al."twoparticulareatypebinariesintheglobularclustercentauri".researchinastronomyandastrophysics 000.007(2013):827. |
入库方式： OAI收割
来源：国家天文台
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。