Revisiting the mass-luminosity relation with an effective temperature modifier
文献类型：期刊论文
| 作者 | Wang, Jifei1; Zhong, Zehao1,2 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2018-10-30 |
| 卷号 | 619页码:5 |
| 关键词 | binaries: eclipsing stars: fundamental parameters |
| ISSN号 | 1432-0746 |
| DOI | 10.1051/0004-6361/201834109 |
| 英文摘要 | The mass-luminosity relation (MLR) is commonly used to estimate the stellar mass. The classical MLR can hardly fit data of all the stellar mass range, thus researchers have generally adopted piecewise MLRs based on the classical MLR with different exponents for different mass ranges. However, varying turning points for the piecewise MLRs and for the exponent of each segment were used, and the estimated stellar masses are not always as good as those obtained by dynamical methods. We suggest an alternative way to improve the mass estimation accuracy: adding an effective temperature modifier to modify every segment MLR. We use a corresponding estimating equation for G-and K-type main-sequence stars, and verify this equation on two eclipsing binary catalogs. We compare the estimated results with those from a classical MLR and several piecewise MLRs. We find that the new estimates are significantly more accurate than those from the classical MLR and some piecewise MLRs, and they are not inferior to the stellar masses from other piecewise MLRs. This indicates that the temperature modifier can effectively help improve the estimation accuracy. In addition, we discuss the effect of adding the temperature modifier on the practicability of estimating stellar masses. |
| WOS关键词 | INFRARED FLUX METHOD ; ANGULAR DIAMETERS ; FUNDAMENTAL PARAMETERS ; ACCURATE MASSES ; NORMAL STARS ; FGK STARS ; INTERFEROMETRY ; RADIUS ; SCALE ; CATALOG |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000448960100001 |
| 出版者 | EDP SCIENCES S A |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/23155]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Wang, Jifei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jifei,Zhong, Zehao. Revisiting the mass-luminosity relation with an effective temperature modifier[J]. ASTRONOMY & ASTROPHYSICS,2018,619:5. |
| APA | Wang, Jifei,&Zhong, Zehao.(2018).Revisiting the mass-luminosity relation with an effective temperature modifier.ASTRONOMY & ASTROPHYSICS,619,5. |
| MLA | Wang, Jifei,et al."Revisiting the mass-luminosity relation with an effective temperature modifier".ASTRONOMY & ASTROPHYSICS 619(2018):5. |
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。