Institutional Repository of Optical Astronomy Research Laboratory
| KIC 5197256: an eclipsing binary containing a delta Scuti variable star | |
Lv, Cheng-Long1,2 ; Esamdin, Ali1,2; Liu, Jun-Hui3; Zeng, Xiang-Yun1,2; Yang, Tao-Zhi4
| |
| 2021-11-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| ISSN | 1674-4527 |
| Volume | 21Issue:9Pages:224 |
| Contribution Rank | 1 |
| Abstract | This paper reports analysis of an eclipsing binary system KIC 5197256 with a delta Sct variable component. Utilizing light-curve modeling, several stellar parameters are derived, e.g., temperature, mass, and mass ratio. The O - C diagram is a straight line with a negative slope which means that its period is almost constant for about 2 yr. Frequency analyses are performed for the residual light curve after subtracting the binary variations. The frequency spectrum reveals that one component star is a delta Scuti variable. Large frequency separation is cross-identified with the histogram graph and the Fourier transform method. Based on the large separation and density relationship, the mean density of the delta Sct component is estimated to be 0.05 g.cm(-3). Five frequencies with the same frequency spacing in the range of 25 d(-1) - 34 d(-1) are detected. Statistically, the pulsation amplitudes of delta Sct stars increase with decreasing of rotations, so we propose that KIC 5197256 might have a relatively large rotational velocity, and the frequency f(10) might be the rotation frequency. |
| Keyword | binaries: eclipsing-stars: individual: KIC 5197256 stars: variables: delta Scuti stars: oscillations |
| DOI | 10.1088/1674-4527/21/9/224 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LIGHT CURVES ; MASS-RATIO ; KEPLER ; FREQUENCY ; MODULATION ; CATALOG ; OSCILLATIONS ; VARIABILITY ; PULSATIONS ; SYSTEM |
| Funding Project | National Natural Science Foundation of China[U2031209] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000714226400001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4331 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Esamdin, Ali |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China 4.Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Lv, Cheng-Long,Esamdin, Ali,Liu, Jun-Hui,et al. KIC 5197256: an eclipsing binary containing a delta Scuti variable star[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(9):224. |
| APA | Lv, Cheng-Long,Esamdin, Ali,Liu, Jun-Hui,Zeng, Xiang-Yun,&Yang, Tao-Zhi.(2021).KIC 5197256: an eclipsing binary containing a delta Scuti variable star.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(9),224. |
| MLA | Lv, Cheng-Long,et al."KIC 5197256: an eclipsing binary containing a delta Scuti variable star".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.9(2021):224. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Lv-2021-KIC 5197256_（2047KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment