Search for and Analysis of Eclipsing Binaries in the LAMOST Medium-resolution Survey Field. I. RA: 23h01m51s, Decl.:+34°36′45"
文献类型：期刊论文
| 作者 | Wang, Jing-Yi3; Li, Kai3; Gao, Xiang3; Guo, Di-Fu3; Wang, Li-Heng3; Gao, Dong-Yang3; Li, Ling-Zhi3; Guo, Ya-Ni3; Gao, Xing2; Sun, Guo-You1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-01-20 |
| 卷号 | 979期号:1页码:69 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad9929 |
| 产权排序 | 2 |
| 英文摘要 | Eclipsing binaries (EBs) play an important astrophysical role in studying stellar properties and evolution. By analyzing photometric data in the the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Medium-Resolution Survey field, R.A.: 23h01m51 .s 00, decl.: +34 degrees 36 ' 45 '' , 48 EBs are detected and two are newly discovered. This specific field has been observed 52 times by the LAMOST Medium-Resolution Survey DR 9, which facilitates a comprehensive analysis of the EBs. For EBs with LAMOST medium-resolution spectra, radial velocity curves were obtained, and their precise orbital parameters were determined by simultaneously analyzing photometric light curves and radial velocity curves. For the other EBs with only photometric light curves, we used the q-search or the temperature ratio method to determine their initial mass ratios and then determined the orbital parameters. It is found that 15 EBs belong to detached systems, one to semi-detached systems, and 32 to contact systems. Based on the O - C analysis for 26 EBs with sufficient eclipsing times, we found a long-term decrease in the orbital period of 11 EBs and a continuous increase of five EBs, which are due to the material transfer between the two components. The O - C curve of 1 EB shows a distinct periodic variation, which is caused by the light travel time effect, and the third body is likely to be a black hole. By applying the spectral subtraction method to 13 EBs with LAMOST medium-resolution spectra, 10 systems exhibit distinct H alpha emission lines, in which one system exhibits double-peaked lines near phases 0.25 and 0.75, implying strong chromospheric activity. In the massluminosities and mass-radius distributions, most of the more massive components are less evolved than the less massive ones. |
| WOS关键词 | ORBITAL PERIOD MODULATION ; LIGHT-CURVE SOLUTIONS ; CONTACT BINARY ; W UMA ; CLOSE-BINARY ; SPECTROSCOPIC ANALYSIS ; PHOTOMETRIC ANALYSIS ; MASS RATIOS ; PHYSICAL PARAMETERS ; STAR LIGHT |
| 资助项目 | National Natural Science Foundation of China[12273018] ; National Natural Science Foundation of China[U1931103] ; National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University ; Chinese Academy of Science Interdisciplinary Innovation Team |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001398132900001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University ; Chinese Academy of Science Interdisciplinary Innovation Team |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7390]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Li, Kai |
| 作者单位 | 1.Xingming Observ, Urumqi, Xinjiang, Peoples R China 2.Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Peoples R China 3.Shandong Univ, Inst Space Sci, Sch Space Sci & Technol, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai 264209, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing-Yi,Li, Kai,Gao, Xiang,et al. Search for and Analysis of Eclipsing Binaries in the LAMOST Medium-resolution Survey Field. I. RA: 23h01m51s, Decl.:+34°36′45"[J]. ASTROPHYSICAL JOURNAL,2025,979(1):69. |
| APA | Wang, Jing-Yi.,Li, Kai.,Gao, Xiang.,Guo, Di-Fu.,Wang, Li-Heng.,...&Sun, Guo-You.(2025).Search for and Analysis of Eclipsing Binaries in the LAMOST Medium-resolution Survey Field. I. RA: 23h01m51s, Decl.:+34°36′45".ASTROPHYSICAL JOURNAL,979(1),69. |
| MLA | Wang, Jing-Yi,et al."Search for and Analysis of Eclipsing Binaries in the LAMOST Medium-resolution Survey Field. I. RA: 23h01m51s, Decl.:+34°36′45"".ASTROPHYSICAL JOURNAL 979.1(2025):69. |
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来源：新疆天文台
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