KIC 10855535: An Elegant δ Scuti Pulsator with Amplitude and Phase Modulation
文献类型：期刊论文
| 作者 | Shen, Li-xian3,5 ; Esamdin, Ali3,5; Lv, Cheng-long3; Wang, Hao-zhi3,5; Yang, Tao-zhi2; Karimov, Rivkat1; Ehgamberdiev, Shuhrat A.1,4; Niu, Hu-biao3; Liu, Jin-zhong3,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2024-12-01 |
| 卷号 | 977期号:1页码:47 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad8b4c |
| 产权排序 | 1 |
| 英文摘要 | We investigated the pulsating behavior of KIC 10855535 using Kepler 4 yr long-cadence data. Two independent frequencies were detected: a pulsation frequency F0 = 17.733260(5) day-1 and a low frequency f 8 = 0.412643(8) day-1. We identify F0 as the fundamental frequency, at which an equidistant quintuplet is centered, suggesting that the star orbits in a binary system. The fitted orbital parameters align well with those reported in previous literature. Long-term phase modulation caused by binarity has been confirmed by considering the light curve from the Transiting Exoplanet Survey Satellite. By removing the light-time effect, we measured a linear change in period of order P/P similar or equal to 1.44x10-7yr-1 , a value that could be indicative of stellar evolution. The star also exhibits a gradual and stable amplitude growth, thereby raising the possibility of structural changes during its evolution. We attributed f 8 and its two harmonics to rotation and surface spots, with further analysis suggesting characteristics evolving over time. Based on this hypothesis, KIC 10855535 may rotate slowly for its type, with a speed of 37(2) km s-1. Overall, KIC 10855535 presents an exceptionally clean spectrum and a relatively slow rotation as a delta Sct pulsator, exhibiting a single pulsation mode that undergoes both amplitude and phase modulation. |
| WOS关键词 | 4 CANUM-VENATICORUM ; SX PHE STARS ; FINDING BINARIES ; MAGNETIC-FIELD ; PERIOD CHANGES ; GAMMA DORADUS ; ECLIPSING BINARIES ; ORBITAL PARAMETERS ; HYBRID PULSATOR ; MAIN-SEQUENCE |
| 资助项目 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166[2022YFE0126200] ; National Key R&D program of China for the Intergovernmental Scientific and Technological Innovation Cooperation Project[2023TSYCCX0101] ; Tianshan Talent Training Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001368309100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166 ; National Key R&D program of China for the Intergovernmental Scientific and Technological Innovation Cooperation Project ; Tianshan Talent Training Program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7288]  |
| 专题 | 光学天文与技术应用研究室_变星研究团组 |
| 通讯作者 | Esamdin, Ali |
| 作者单位 | 1.Uzbek Acad Sci, Ulugh Beg Astron Inst, Astronomicheskaya 33, Tashkent 100052, Uzbekistan 2.Xi An Jiao Tong Univ, Sch Phys, Key Lab Nonequilibrium Synth & Modulat Condensed M, Minist Educ, Xian 710049, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 4.Natl Univ Uzbekistan, Tashkent 100052, Uzbekistan 5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Li-xian,Esamdin, Ali,Lv, Cheng-long,et al. KIC 10855535: An Elegant δ Scuti Pulsator with Amplitude and Phase Modulation[J]. ASTROPHYSICAL JOURNAL,2024,977(1):47. |
| APA | Shen, Li-xian.,Esamdin, Ali.,Lv, Cheng-long.,Wang, Hao-zhi.,Yang, Tao-zhi.,...&Liu, Jin-zhong.(2024).KIC 10855535: An Elegant δ Scuti Pulsator with Amplitude and Phase Modulation.ASTROPHYSICAL JOURNAL,977(1),47. |
| MLA | Shen, Li-xian,et al."KIC 10855535: An Elegant δ Scuti Pulsator with Amplitude and Phase Modulation".ASTROPHYSICAL JOURNAL 977.1(2024):47. |
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来源：新疆天文台
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