| KIC 8840638: A Newly Discovered Eclipsing Binary with δ Scuti-Type Oscillations | |
Yang, Tao-Zhi1; Zuo, Zhao-Yu1; Liu, Jun-Hui2,3; Jiang DK(姜登凯)4,5,6,7 ; Zhang, Zhi-Xiang2; Tang, Qin-jie1; Hernández, Antonio García8
| |
| 发表期刊 | ASTROPHYSICAL JOURNAL
 |
| 2024-11-01 | |
| 卷号 | 975期号:2 |
| DOI | 10.3847/1538-4357/ad7841 |
| 产权排序 | 第4完成单位 |
| 收录类别 | SCI |
| 摘要 | In this paper, we analyze the light variation of KIC 8840638 using high-precision time-series data from the Kepler mission. The analysis reveals that this target is a new detached eclipsing binary system with a delta Scuti component, rather than a single delta Scuti star as previously known. The frequency analysis of short-cadence data reveals 95 significant frequencies, most of which lie in a frequency range of 23-32 day-1. Among them, seven independent frequencies are detected in the typical frequency range of delta Scuti stars, and they are identified as pressure modes. In addition, a possible large separation value of Delta nu = 36.5 +/- 0.1 mu Hz is also detected with the Fourier transform (FT) and autocorrelation function (AC) analysis. The orbital frequency f orb (= 0.320008 day-1) and its harmonics are also detected directly in the frequency spectrum. The binary modelings derived from PHOEBE indicate that this binary system is in detached configurations with a mass ratio of q=0.33-0.04+0.06 , an inclination angle of 40.19-2.84+3.96 degrees. The derived parameters and binary evolutionary model suggest that the primary star is an object on the verge of leaving the main sequence with a temperature of similar to 7600 K, while the secondary appears to be a cool component entering the giant branch with a temperature similar to 3100 K lower than the primary. Moreover, this system may have undergone a mass ratio reversal, where the more massive star is the gainer component and the less massive one is the donor star. |
| 资助项目 | National Natural Science Foundation of China; Shaanxi Fundamental Science Research Project for Mathematics and Physics[23JSY015]; Spanish State Research Agency (AEI)[PID2019-107061GB-064]; National Key R&D Program of China[2021YFA1600403]; Western Light Project of CAS[XBZG-ZDSYS-202117]; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Yunnan Fundamental Research Project[202201BC070003]; Yunnan Fundamental Research Project[202401BC070007]; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003]; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project; China Manned Space Project |
| 项目资助者 | National Natural Science Foundation of China ; Shaanxi Fundamental Science Research Project for Mathematics and Physics[23JSY015] ; Spanish State Research Agency (AEI)[PID2019-107061GB-064] ; National Key R&D Program of China[2021YFA1600403] ; Western Light Project of CAS[XBZG-ZDSYS-202117] ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Yunnan Fundamental Research Project[202201BC070003, 202401BC070007] ; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003] ; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project ; China Manned Space Project[CMS-CSST-2021-A08] ; [12473033,12073070] ; [12333008] ; [12288102] ; [12090040/3] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:001345609800001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | DOUBLE-MODE ; ABSOLUTE DIMENSIONS ; INPUT CATALOG ; 1ST OVERTONE ; KEPLER ; ALGOL ; STARS ; EVOLUTION ; MODULATION ; FREQUENCY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27672 |
| 专题 | 大样本恒星演化研究组 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, 710049 Xi'an, People's Republic of China; [email protected]; 2.Department of Astronomy, Xiamen University, 361005 Xiamen, Fujian, People's Republic of China; [email protected]; 3.Research School of Astronomy & Astrophysics, Australian National University, Cotter Road, Weston, ACT 2611, Australia; 4.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China; 5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China; 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China; 7.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China; 8.Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva s/n, E-18071, Granada, Spain |
| 推荐引用方式 GB/T 7714 | Yang, Tao-Zhi,Zuo, Zhao-Yu,Liu, Jun-Hui,et al. KIC 8840638: A Newly Discovered Eclipsing Binary with δ Scuti-Type Oscillations[J]. ASTROPHYSICAL JOURNAL,2024,975(2). |
| APA | Yang, Tao-Zhi.,Zuo, Zhao-Yu.,Liu, Jun-Hui.,姜登凯.,Zhang, Zhi-Xiang.,...&Hernández, Antonio García.(2024).KIC 8840638: A Newly Discovered Eclipsing Binary with δ Scuti-Type Oscillations.ASTROPHYSICAL JOURNAL,975(2). |
| MLA | Yang, Tao-Zhi,et al."KIC 8840638: A Newly Discovered Eclipsing Binary with δ Scuti-Type Oscillations".ASTROPHYSICAL JOURNAL 975.2(2024). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| KIC 8840638_ A Newly（3602KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论