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| KIC 12602250: A Low-amplitude Double-mode Delta Scuti Star with Amplitude Modulation | |
Lv, Chenglong1,2 ; Esamdin, Ali1; Zeng, Xiangyun1,2; Pascual-Granado, J.3; Yang, Taozhi4; Liu, Junhui5
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| 2021-08-01 | |
| Source Publication | Astronomical Journal
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| ISSN | 0004-6256 |
| Volume | 162Issue:2Pages:48 |
| Contribution Rank | 1 |
| Abstract | We report a detailed light-curve analysis of the Kepler target Kepler Input Catalog (KIC) 12602250. The results show that KIC 12602250 is a low-amplitude radial double-mode delta-Scuti star with amplitude modulation. The Fourier analysis of the long cadence data (i.e., Q0-Q17, spanning 1471 days) reveals that the variations of the light curve are dominated by the strongest mode with frequency F0 = 11.6141 d(-1), suggesting that KIC 12602250 is a delta-Scuti star. The other independent mode F1 = 14.9741 d(-1) is newly detected. The amplitude of the light variations of KIC 12602250 is similar to 0.06 mag, which indicates that this is a low-amplitude delta-Scuti star; but the ratio of F0/F1 is estimated as 0.7756, which is typical of HADS, and a slow amplitude growth is detected in F1 and f (3), which could be due to stellar evolution, suggesting that KIC 12602250 could be a post-main-sequence delta Scuti that is crossing the instability strip for the first time. |
| Keyword | light curves frequency pulsation asteroseismology variability photometry Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.3847/1538-3881/ac082b |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000670768400001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4719 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Esamdin, Ali; Zeng, Xiangyun |
| Affiliation | 1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, People’s Republic of China; 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China; 3.Instituto de Astrofísica de Andalucía—CSIC, E-18008 Granada, Spain; 4.School of Physics, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China; 5.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People’s Republic of 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, Chenglong,Esamdin, Ali,Zeng, Xiangyun,et al. KIC 12602250: A Low-amplitude Double-mode Delta Scuti Star with Amplitude Modulation[J]. Astronomical Journal,2021,162(2):48. |
| APA | Lv, Chenglong,Esamdin, Ali,Zeng, Xiangyun,Pascual-Granado, J.,Yang, Taozhi,&Liu, Junhui.(2021).KIC 12602250: A Low-amplitude Double-mode Delta Scuti Star with Amplitude Modulation.Astronomical Journal,162(2),48. |
| MLA | Lv, Chenglong,et al."KIC 12602250: A Low-amplitude Double-mode Delta Scuti Star with Amplitude Modulation".Astronomical Journal 162.2(2021):48. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Lv-2021-KIC 12602250（563KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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