Orbital Solutions of the New Low-mass Eclipsing Binary TIC 157376469 with Spotted Activities
文献类型：期刊论文
| 作者 | Pan,Yang3; Fu,Jian-Ning3; Zhang,Xiaobin1 ; Wang,Jiaxin3; Zong,Weikai3; Li,Chunqian1,2; Zhang,Bo3
|
| 刊名 | Publications of the Astronomical Society of the Pacific
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 133期号:1022 |
| 关键词 | Low mass stars Stellar activity Eclipsing binary stars Late-type stars |
| ISSN号 | 0004-6280 |
| DOI | 10.1088/1538-3873/abef77 |
| 英文摘要 | Abstract We carried out a photometric and spectroscopic analysis for the eclipsing binary TIC 157376469 using the TESS and LAMOST data. A new linear ephemeris is given. By fitting the light curves and radial velocity curves with the Wilson–Devinney code, it apperas that the binary is composed of two K-type main-sequence stars. The orbit of the binary is slightly eccentric ( e ≈ 0.0017 ) and the primary is a spotted active star. The masses and radii of the two components are determined to be M 1 = 0.704 ± 0.028 M ⊙ , R 1 = 0.754 ± 0.010 R ⊙ , M 2 = 0.539 ± 0.021 M ⊙ , R 2 = 0.543 ± 0.007 R ⊙ , respectively. The temperature ratio ( T 2 / T 1 ) is determined to be ～0.879. Under a assumption that the primary temperature is T 1 = 4740 K , comparisons to the PARSEC v1.2 isochrones show that for the primary the radius is oversized of ～16%, and the effective temperature is cooler of ～ 300 K (～6%). While, the properties of the secondary are almost in agreement with the predictions of the model. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-6280-133-1022-ABEF77 |
| 出版者 | The Astronomical Society of the Pacific |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58122]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.Department of Astronomy, Beijing Normal University, Beijing 100875, People’s Republic of China; jnfu@bnu.edu.cn |
| 推荐引用方式 GB/T 7714 | Pan,Yang,Fu,Jian-Ning,Zhang,Xiaobin,et al. Orbital Solutions of the New Low-mass Eclipsing Binary TIC 157376469 with Spotted Activities[J]. Publications of the Astronomical Society of the Pacific,2021,133(1022). |
| APA | Pan,Yang.,Fu,Jian-Ning.,Zhang,Xiaobin.,Wang,Jiaxin.,Zong,Weikai.,...&Zhang,Bo.(2021).Orbital Solutions of the New Low-mass Eclipsing Binary TIC 157376469 with Spotted Activities.Publications of the Astronomical Society of the Pacific,133(1022). |
| MLA | Pan,Yang,et al."Orbital Solutions of the New Low-mass Eclipsing Binary TIC 157376469 with Spotted Activities".Publications of the Astronomical Society of the Pacific 133.1022(2021). |
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。