The first analysis of three long-period low mass-ratio contact binaries
文献类型：期刊论文
| 作者 | Liu, Fei3; Li, Kai3; Gao, Xiang3; Guo, Ya-Ni3; Li, Ling-Zhi3; Liu, Xin-Yi; Li, Ke-Xin; Gao, Xin-Yi; Gao, Xing1,4; Sun, Guo-You2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2024 |
| 卷号 | 527期号:3页码:6406-6418 |
| 关键词 | binaries: close binaries: eclipsing stars: evolution stars: individual |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stad3591 |
| 产权排序 | 3 |
| 英文摘要 | The photometric and spectroscopic studies of three contact binaries, ASASSN-V J052036.28+144711.0, ASASSN-V J064846.22+241709.9, and ASASSN-V J073441.02+555833.0 were performed for the first time. The periods of all the three targets are longer than 0.5 d, and we discovered that their mass ratios are all smaller than 0.25. So, they are long-period low mass-ratio contact binaries. ASASSN-V J052036.28+144711.0 and ASASSN-V J064846.22+241709.9 are medium contact binaries. ASASSN-V J073441.02+555833.0 is a deep contact binary, which is also the only one existing O'Connell effect. We attached a dark spot on its secondary component for a better fit of light curves featuring asymmetry. From orbital period analysis, two of the three targets are believed to demonstrate a secular period increase, while one shows no long-term variation. We employed the spectral subtraction approach to investigate the LAMOST spectra, while all of the three binaries show no H aemission line, implying no chromospheric activity. Their initial masses, current average densities, and mass transfer rates between the two components were calculated. We obtained that the three targets are stable for the moment. |
| WOS关键词 | ASAS-SN CATALOG ; VARIABLE-STARS ; LIGHT ; EVOLUTION ; UMA ; SYSTEMS ; DEEP ; EXPLANATION ; PARAMETERS ; STABILITY |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12273018] ; National Natural Science Foundation of China (NSFC)[U1931103] ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University ; Young Scholars Program of Shandong University[20820171006] ; Chinese Academy of Science Interdisciplinary Innovation Team ; National Development and Reform Commission ; Chinese Academy of Sciences ; NASA Science Mission Directorate ; Gordon and Betty Moore Foundation[GBMF5490] ; Gordon and Betty Moore Foundation[GBMF10501] ; Alfred P. Sloan Foundation[G-2021-14192] ; National Aeronautics and Space Administration ; National Science Foundation[e-INFRA CZ LM2018140] ; Ministry of Education, Youth and Sports of the Czech Republic |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001131511000032 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; Qilu Young Researcher Project of Shandong University ; Young Scholars Program of Shandong University ; Chinese Academy of Science Interdisciplinary Innovation Team ; National Development and Reform Commission ; Chinese Academy of Sciences ; NASA Science Mission Directorate ; Gordon and Betty Moore Foundation ; Alfred P. Sloan Foundation ; National Aeronautics and Space Administration ; National Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5800]  |
| 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.Wenzhou Astron Assoc, Yueqing 325603, Zhejiang, Peoples R China 3.Shandong Univ, Inst Space Sci, Sch Space Sci & Phys, Shandong Key Lab Opt Astron & Solar Terr Enviro, Weihai 264209, Shandong, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Fei,Li, Kai,Gao, Xiang,et al. The first analysis of three long-period low mass-ratio contact binaries[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,527(3):6406-6418. |
| APA | Liu, Fei.,Li, Kai.,Gao, Xiang.,Guo, Ya-Ni.,Li, Ling-Zhi.,...&Yin, Shi-Peng.(2024).The first analysis of three long-period low mass-ratio contact binaries.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,527(3),6406-6418. |
| MLA | Liu, Fei,et al."The first analysis of three long-period low mass-ratio contact binaries".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 527.3(2024):6406-6418. |
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来源：新疆天文台
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