Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries
文献类型：期刊论文
| 作者 | Xu, Xin2; Li, Kai2; Liu, Fei2; Yan, Qian-Xue2; Wang, Yi-Fan2; Cui, Xin-Yu2; Wang, Jing-Yi2; Gao, Xing1; Sun, Guo-You3; Wu, Cheng-Yu2 |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2025-02-03 |
| 卷号 | 169期号:2页码:853-873 |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/ad9a59 |
| 产权排序 | 2 |
| 英文摘要 | We performed photometric and spectroscopic studies of three large amplitude contact binaries: NSVS 2418361, ATLAS J057.1170+31.2384, and NSVS 7377875. The amplitudes of these three systems' light curves are more than 0.7 mag. We analyzed the light curves using the Wilson-Devinney code to yield physical parameters. The photometric solutions suggested that NSVS 7377875 belongs to an A-subtype contact binary, while the others are classified as W-subtype ones. Furthermore, the mass ratio of NSVS 7377875 is higher than 0.72, so it belongs to H-subtype contact binaries. Since their light curves have unequal height at two maxima, which is called the O'Connell effect, a dark spot on the primary component for each target was required to get a better fit of the light curves. The orbital period investigation shows that the period of NSVS 2418361 is increasing, indicating a mass transfer from the the less massive component to the more massive one, while the other targets exhibit no long-term variation. Our spectral subtraction analysis of LAMOST spectra revealed excess emissions in the H alpha line, indicating chromospheric activity in all the three targets. The Gaia distance was applied to estimate the absolute parameters of the three targets, and we obtained their evolutionary state. The relationships between the energy transfer parameter of 76 H-subtype contact binaries and their bolometric luminosity ratios, as well as their contact degree, were presented. We discovered that H-subtype systems have less efficient energy transfer rate, which corresponds to the conclusion proposed by Csizmadia & Klagyivik. |
| WOS关键词 | LIGHT-CURVE SOLUTIONS ; W-UMA ; ECLIPSING BINARY ; PHYSICAL PARAMETERS ; MASS-RATIO ; STAR LIGHT ; CCD PHOTOMETRY ; PERIOD ; SYSTEMS ; EVOLUTION |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12273018] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[U1931103] ; National Natural Science Foundation of China ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University[yr20240205] ; Instrument Education Funds of Shandong University |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001400598700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University ; Instrument Education Funds of Shandong University |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7393]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Li, Kai |
| 作者单位 | 1.Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Shandong Univ, Inst Space Sci, Sch Space Sci & Technol, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai 264209, Shandong, Peoples R China 3.Xingming Observ, Urumqi 830002, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xin,Li, Kai,Liu, Fei,et al. Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries[J]. ASTRONOMICAL JOURNAL,2025,169(2):853-873. |
| APA | Xu, Xin.,Li, Kai.,Liu, Fei.,Yan, Qian-Xue.,Wang, Yi-Fan.,...&Li, Mu-Zi-Mei.(2025).Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries.ASTRONOMICAL JOURNAL,169(2),853-873. |
| MLA | Xu, Xin,et al."Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries".ASTRONOMICAL JOURNAL 169.2(2025):853-873. |
入库方式： OAI收割
来源：新疆天文台
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