KIC 3440495: A Rapidly Rotating delta Scuti-gamma Doradus Hybrid Pulsator in a Binary System
文献类型：期刊论文
| 作者 | Ma, Shuguo7,8 ; Esamdin, Ali7,8; Hernandez, Antonio Garcia6; Murphy, Simon J.5; Lv, Chenglong7,8; Wei, Peng8; Rieutord, Michel4; Pascual-Granado, Javier3; Dang, Fei8; Niu, Hubiao8
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2022-10-01 |
| 卷号 | 937期号:2页码:15 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac8c30 |
| 通讯作者 | Ma, Shuguo(mashuguo@xao.ac.cn) |
| 英文摘要 | In this paper, we study the pulsation properties of KIC 3440495 using Kepler and TESS data. A Fourier analysis of the light curve reveals 24 pulsation modes as well as 29 frequencies associated with rotation. The rotation frequency is derived to be f (rot) = 2.322909(2) day(-1), and the rotational modulation is determined to be caused by starspots. A large frequency separation of Delta nu = 54.5 mu Hz is found by using a Fourier transform, the autocorrelation function, a histogram of frequency differences, and an echelle diagram. We use the large separation to estimate the refined stellar parameters of the star to be v = [239, 279] km s(-1), M = [1.5, 1.65] M (circle dot), R (equator) = [2.03, 2.30] R (circle dot), R (polar) = [1.72, 1.78] R (circle dot), and omega = [0.61, 0.77]. The phase modulations of the pulsating frequencies show a long-term trend which may be attributed to an orbital effect of a binary system; hence, the star may be a fast rotating pulsator in a binary system. KIC 3440495 has an amplitude spectrum similar to Altair, and is identified as a potential sister of Altair. Based on studies of Altair, KIC 3330495 is presumably a young star at a similar evolutionary stage. |
| WOS关键词 | A-TYPE STARS ; TO-CORE ROTATION ; PHASE MODULATION ; FINDING BINARIES ; ASTEROSEISMIC MEASUREMENT ; ACOUSTIC-OSCILLATIONS ; POLYTROPIC STARS ; MAGNETIC-FIELDS ; MAIN-SEQUENCE ; F STARS |
| 资助项目 | National Natural Science Foundation of China[12003060] ; National Natural Science Foundation of China[U2031209] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2020D01B59] ; Chinese Academy of Sciences (CAS) Light of West China Program[2021-XBQNXZ-029] ; FEDER/Junta de Andalucia-Consejeria de Economia y Conocimiento by Universidad de Granada[E-FQM-041-UGR18] ; Programas Estatales de Generacion de Conocimiento y Fortalecimiento Cientifico y Tecnologico del Sistema de I+D+i y de I+D+i Orientada a los Retos de la Sociedad from the Spanish Ministry of Science, Innovation and Universities (MCIU)[PID2019-107061GB-C63] ; State Agency for Research through the Center of Excellence Severo Ochoa award from the Spanish Ministry of Science, Innovation and Universities (MCIU)[SEV-2017-0709] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000862120200001 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Chinese Academy of Sciences (CAS) Light of West China Program ; FEDER/Junta de Andalucia-Consejeria de Economia y Conocimiento by Universidad de Granada ; Programas Estatales de Generacion de Conocimiento y Fortalecimiento Cientifico y Tecnologico del Sistema de I+D+i y de I+D+i Orientada a los Retos de la Sociedad from the Spanish Ministry of Science, Innovation and Universities (MCIU) ; State Agency for Research through the Center of Excellence Severo Ochoa award from the Spanish Ministry of Science, Innovation and Universities (MCIU) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4896]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 |
| 通讯作者 | Ma, Shuguo |
| 作者单位 | 1.Uzbek Acad Sci, Ulugh Beg Astron Inst, Tashkent 100052, Uzbekistan 2.Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China 3.Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain 4.Univ Toulouse, CNES, UPS, CNRS,IRAP, 14 Ave Edouard Belin, F-31400 Toulouse, France 5.Univ Southern Queensland, Ctr Astrophys, Toowoomba, Qld 4350, Australia 6.Univ Granada, Theoret Phys & Cosmos, E-18071 Granada, Spain 7.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Shuguo,Esamdin, Ali,Hernandez, Antonio Garcia,et al. KIC 3440495: A Rapidly Rotating delta Scuti-gamma Doradus Hybrid Pulsator in a Binary System[J]. ASTROPHYSICAL JOURNAL,2022,937(2):15. |
| APA | Ma, Shuguo.,Esamdin, Ali.,Hernandez, Antonio Garcia.,Murphy, Simon J..,Lv, Chenglong.,...&Tillayev, Yusuf.(2022).KIC 3440495: A Rapidly Rotating delta Scuti-gamma Doradus Hybrid Pulsator in a Binary System.ASTROPHYSICAL JOURNAL,937(2),15. |
| MLA | Ma, Shuguo,et al."KIC 3440495: A Rapidly Rotating delta Scuti-gamma Doradus Hybrid Pulsator in a Binary System".ASTROPHYSICAL JOURNAL 937.2(2022):15. |
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来源：新疆天文台
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