Institutional Repository of Radio Astronomy Research Laboratory
| Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries | |
| Li, Kai1; Xia, Qi-Qi1; Kim, Chun-Hwey2; Gao, Xing3; Hu, Shao-Ming1; Guo, Di-Fu1; Gao, Dong-Yang1; Chen, Xu1; Guo, Ya-Ni1 | |
| 2021-07-01 | |
| Source Publication | Astronomical Journal
 |
| ISSN | 0004-6256 |
| Volume | 162Issue:1Pages:13 |
| Contribution Rank | 3 |
| Abstract | 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. |
| Keyword | 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 |
| Subtype | Article |
| DOI | 10.3847/1538-3881/abfc53 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000661254700001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4717 |
| Collection | 射电天文研究室 |
| Corresponding Author | Li, Kai |
| Affiliation | 1.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; 2.Department of Astronomy and Space Science, Chungbuk National University, Cheongju 361-763, Republic of Korea; 3.Xinjiang Astronomical Observatory, 150 Science 1-Street, Urumqi 830011, Peopleʼs Republic of China |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Li-2021-Photometric （2283KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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