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Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries
文献类型：期刊论文
| 作者 | Li, Kai3; Xia, Qi-Qi3; Kim, Chun-Hwey2; Gao, Xing1; Hu, Shao-Ming3; Guo, Di-Fu3; Gao, Dong-Yang3; Chen, Xu3; Guo, Ya-Ni3 |
| 刊名 | Astronomical Journal
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 162期号:1页码:13 |
| 关键词 | low-mass-ratio light-curve analysis ursae-majoris system thermal relaxation oscillation radial-velocity curves flip-flop activity short-period limit rt leonis minoris uma-type binaries physical parameters Astronomy & Astrophysics |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/abfc53 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | High precision CCD observations of six totally eclipsing contact binaries were presented and analyzed. It is found that only one target is an A-type contact binary (V429 Cam), while the others are W-type contact ones. By analyzing the times of light minima, we discovered that two of them exhibit secular period increase while three manifest long-term period decrease. For V1033 Her, a cyclic variation superimposed on the long-term increase was discovered. By comparing the Gaia distances with those calculated by the absolute parameters of 173 contact binaries, we found that the Gaia distance can be applied to estimate the absolute parameters for most contact binaries. The absolute parameters of our six targets were estimated using their Gaia distances. The evolutionary status of contact binaries was studied, and we found that the A- and W-subtype contact binaries may have different formation channels. The relationship between the spectroscopic and photometric mass ratios for 101 contact binaries was presented. It was discovered that the photometric mass ratios are in good agreement with the spectroscopic ones for almost all of the totally eclipsing systems, which is corresponding to the results derived by Pribulla et al. and Terrell & Wilson. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000661254700001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4717]  |
| 专题 | 新疆天文台_射电天文研究室 |
| 通讯作者 | Li, Kai |
| 作者单位 | 1.Xinjiang Astronomical Observatory, 150 Science 1-Street, Urumqi 830011, Peopleʼs Republic of China 2.Department of Astronomy and Space Science, Chungbuk National University, Cheongju 361-763, Republic of Korea; 3.Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai, Shandong 264209, Peopleʼs Republic of China; |
| 推荐引用方式 GB/T 7714 | Li, Kai,Xia, Qi-Qi,Kim, Chun-Hwey,et al. Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries[J]. Astronomical Journal,2021,162(1):13. |
| APA | Li, Kai.,Xia, Qi-Qi.,Kim, Chun-Hwey.,Gao, Xing.,Hu, Shao-Ming.,...&Guo, Ya-Ni.(2021).Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries.Astronomical Journal,162(1),13. |
| MLA | Li, Kai,et al."Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries".Astronomical Journal 162.1(2021):13. |
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来源：新疆天文台
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