KMS of Xinjiang Astronomical Observatory, CAS
| Photometric and Spectroscopic Investigations of Three Large Amplitude Contact Binaries | |
| Xu, Xin1; Li, Kai1; Liu, Fei1; Yan, Qian-Xue1; Wang, Yi-Fan1; Cui, Xin-Yu1; Wang, Jing-Yi1; Gao, Xing2; Sun, Guo-You3; Wu, Cheng-Yu1; Li, Mu-Zi-Mei1 | |
| 2025-02-03 | |
| Source Publication | ASTRONOMICAL JOURNAL
 |
| ISSN | 0004-6256 |
| Volume | 169Issue:2Pages:853-873 |
| Contribution Rank | 2 |
| Abstract | 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. |
| DOI | 10.3847/1538-3881/ad9a59 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LIGHT-CURVE SOLUTIONS ; W-UMA ; ECLIPSING BINARY ; PHYSICAL PARAMETERS ; MASS-RATIO ; STAR LIGHT ; CCD PHOTOMETRY ; PERIOD ; SYSTEMS ; EVOLUTION |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001400598700001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7394 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Li, Kai |
| Affiliation | 1.Shandong Univ, Inst Space Sci, Sch Space Sci & Technol, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai 264209, Shandong, Peoples R China 2.Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 3.Xingming Observ, Urumqi 830002, Xinjiang, Peoples R China |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Xu-2025-Photometric （1849KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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