KIC 5623923: A Faint Eclipsing Binary Consisting of δ Scuti Pulsations
文献类型：期刊论文
| 作者 | Yang, Tao-Zhi2; Zuo, Zhao-Yu1,2; Guo, Shi-ping2; Ding X(丁旭)5,6,7; Wang, Hao-zhi3,4; Yaqup, Shahidin4; Esamdin, Ali3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026 |
| 卷号 | 996期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae232c |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | In this paper, we present a detailed analysis of the light variation of KIC 5623923 using high-precision time-series data from the Kepler mission. The analysis reveals this target is an eclipsing binary system with delta Scuti-type pulsations from the primary component, rather than from the secondary as previously reported. The frequency analysis of three short-cadence data reveals 41 significant frequencies, including the orbital frequency (forb = 0.827198 day-1) due to orbital motion from the binary system and the pulsational frequencies. Most of the pulsational signal lies in the frequency range of 20-32 day-1, with amplitude between 0.3 and 8.8 mmag, in which seven peaks are identified as independent modes. The strongest one (f3 = 28.499399 day-1) likely corresponds to a high-order radial mode. In other peaks (f7, f10, and f18), several pairs of multiplet structures centered on them are found. The fitting of spectral energy distribution using the collected photometry measurement of multiple bands reveals the effective temperatures of the primary and secondary components as 8348-225+230 K and 4753-229+237 K, respectively, which place the primary star in the classical pulsating instability zone. The characteristic light-curve morphology and short orbital period are consistent with a tidally locked system. Based on the characteristics of amplitude spectra of pulsating stars in close binaries, the analysis of the multiplet structures reveals that three independent frequencies (i.e., f7, f10, and f18) correspond to nonradial modes with l = 2, while the associated sidelobes are produced by the orbital motion. We highlight the potential of this method in future studies of pulsating binary stars. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | ABSOLUTE DIMENSIONS ; PHASE MODULATION ; FINDING BINARIES ; INPUT CATALOG ; FOURIER VIEW ; FM STARS ; KEPLER ; PULSATORS ; GAIA ; EXOPLANETS |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[Nos. 12003020]; MOST divided by National Natural Science Foundation of China (NSFC)[12473043] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001647673500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[Nos. 12003020, 12473043] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28808]  |
| 专题 | 云南天文台_中国科学院天体结构与演化重点实验室 |
| 通讯作者 | Zuo, Zhao-Yu |
| 作者单位 | 1.Institut für Astronomie und Astrophysik, Kepler Center for Astro and Particle Physics, Eberhard Karls Universität, Sand 1, D-72076 Tübingen, Germany; 2.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; zuozyu@xjtu.edu.cn; 3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 4.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, 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 of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P. O. Box 110, 650216 Kunming, People’s Republic of China; 7.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650216 Kunming, People’s Republic of China; |
| 推荐引用方式 GB/T 7714 | Yang, Tao-Zhi,Zuo, Zhao-Yu,Guo, Shi-ping,et al. KIC 5623923: A Faint Eclipsing Binary Consisting of δ Scuti Pulsations[J]. ASTROPHYSICAL JOURNAL,2026,996(1). |
| APA | Yang, Tao-Zhi.,Zuo, Zhao-Yu.,Guo, Shi-ping.,丁旭.,Wang, Hao-zhi.,...&Esamdin, Ali.(2026).KIC 5623923: A Faint Eclipsing Binary Consisting of δ Scuti Pulsations.ASTROPHYSICAL JOURNAL,996(1). |
| MLA | Yang, Tao-Zhi,et al."KIC 5623923: A Faint Eclipsing Binary Consisting of δ Scuti Pulsations".ASTROPHYSICAL JOURNAL 996.1(2026). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
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。