Precise determination of fundamental parameters of six exoplanet host stars and their planets
文献类型：期刊论文
| 作者 | Liu, Kang1; Bi, Shao-Lan1; Li, Tan-Da1,2 ; Liu, Zhi-E1; Tian, Zhi-Jia1; Ge, Zhi-Shuai1
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2014-11-01 |
| 卷号 | 14期号:11页码:1447-1457 |
| 关键词 | stars: fundamental parameters stars: abundances stars: evolution stars: rotation stars: planetary systems |
| 英文摘要 | The aim of this paper is to determinate the fundamental parameters of six exoplanet host (EH) stars and their planets. Because techniques for detecting exo-planets yield properties of the planet only as a function of the properties of the host star, we must accurately determine the parameters of the EH stars first. For this reason, we constructed a grid of stellar models including diffusion and rotation-induced extra-mixing with given ranges of input parameters (i.e. mass, metallicity and initial rotation rate). In addition to the commonly used observational constraints such as the effective temperature T-eff, luminosity L and metallicity [Fe/H], we added two observational constraints, the lithium abundance log N (Li) and the rotational period P-rot. These two additional observed parameters can set further constraints on the model due to their correlations with mass, age and other stellar properties. Hence, our estimations of the fundamental parameters for these EH stars and their planets have a higher precision than previous works. Therefore, the combination of rotational period and lithium helps us to obtain more accurate parameters for stars, leading to an improvement in knowledge about the physical state of EH stars and their planets. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344601200008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6392]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Kang,Bi, Shao-Lan,Li, Tan-Da,et al. Precise determination of fundamental parameters of six exoplanet host stars and their planets[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(11):1447-1457. |
| APA | Liu, Kang,Bi, Shao-Lan,Li, Tan-Da,Liu, Zhi-E,Tian, Zhi-Jia,&Ge, Zhi-Shuai.(2014).Precise determination of fundamental parameters of six exoplanet host stars and their planets.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(11),1447-1457. |
| MLA | Liu, Kang,et al."Precise determination of fundamental parameters of six exoplanet host stars and their planets".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.11(2014):1447-1457. |
入库方式： OAI收割
来源：国家天文台
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