Measurement of the limb darkening coefficient of stars
文献类型：期刊论文
| 作者 | Zhao, DF; Hang, HR |
| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2000-10-01 |
| 卷号 | 24期号:4页码:481-494 |
| 关键词 | stellar atmosphere limb darkening coefficient |
| ISSN号 | 0275-1062 |
| 英文摘要 | This paper introduces a new method of describing the limb darkening phenomenon of stellar atmospheres in the 1st and 2nd order approximations. The limb darkening coefficients are given by direct measurements of relevant physical quantities or measurements of flux and a supplementary quantity, namely, the star's surface temperature. The comparison either with solar observations or with the method of numerical simulation of the atmosphere shows that the new method can very accurately describe the star's limb darkening and determine its relevant coefficients. The accuracy of the new direct method is assessed using 176 observational data points of the Sun, and the mean fractional differences is found to be 0.38% for the 1st-, and 0.26% for the 2nd-order approximations. The mean differences of the indirect method are close to, and slightly larger than these values. When compared with numerical models of the atmosphere, the differences are in the range from under 1% to under 3%. |
| 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 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000165799700010 |
| 公开日期 | 2013-02-01 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8289]  |
| 专题 | 紫金山天文台_期刊（老文献） |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Zhejiang Normal Univ, Jinhua 321004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, DF,Hang, HR. Measurement of the limb darkening coefficient of stars[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2000,24(4):481-494. |
| APA | Zhao, DF,&Hang, HR.(2000).Measurement of the limb darkening coefficient of stars.CHINESE ASTRONOMY AND ASTROPHYSICS,24(4),481-494. |
| MLA | Zhao, DF,et al."Measurement of the limb darkening coefficient of stars".CHINESE ASTRONOMY AND ASTROPHYSICS 24.4(2000):481-494. |
入库方式： OAI收割
来源：紫金山天文台
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