A Weak Modulation Effect Detected in the Light Curves of KIC 5950759: Intrinsic or Instrumental Effect?
文献类型：期刊论文
| 作者 | Ma, Lu1 ; Zeng, Xiangyun1,2; Liu, Junhui1,2; Liu, Jinzhong1; Zhao, Fei1; Yang, Taozhi1,2; Esamdin, A.1,2; Song, Fangfang1,2; Niu, Hubiao1; Feng, Guojie1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2018-08-20 |
| 卷号 | 863期号:2页码:10 |
| 关键词 | Stars: Oscillations Stars: Variables: Delta Scuti |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aad241 |
| 产权排序 | 1 |
| 英文摘要 | In this paper, the high-precision light curves of the Kepler target KIC 5950759 are analyzed. The Fourier analysis of the long cadence (LC) light curve reveals three independent frequencies. Two of them are main pulsation modes: F0 = 14.221373(21) d(-1) and F1 = 18.337249(44) d(-1). The third independent frequency, f(m) = 0.3193 d(-1), is found in LC data with a signal-to-noise ratio of 6.2. A weak modulation of fm to F0 and F1 modes (triplet structures centered on F0 and F1) are detected both in long and short cadence data. This is the first detection of the modulation effect in a double-mode high-amplitude delta Scuti (HADS) star. The most possible cause of the modulation effect in the light curves is amplitude modulation with the star's rotation frequency of 0.3193 d(-1). The preliminary analysis suggests that KIC 5950759 is in the bottom of the HADS instability strip and likely situated in the main sequence. Spectroscopic observations are necessary to verify the true nature of the modulation terms. |
| WOS关键词 | Delta-scuti Stars ; Pulsating Stars ; Variable-stars ; Petersen Diagrams ; Hads Star ; Rr Lyrae ; Asteroseismology ; Photometry ; Mission ; Space |
| 资助项目 | program of the light in China's Western Region (LCWR)[XBBS-2014-25] ; program of the light in China's Western Region (LCWR)[2015-XBQN-A-02] ; National Natural Science Foundation of China[11273051] ; National Natural Science Foundation of China[11661161016] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13503-03-107] ; Youth Innovation Promotion Association CAS[2014050] ; Youth Innovation Promotion Association CAS[2018080] ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000442628400031 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | program of the light in China's Western Region (LCWR) ; National Natural Science Foundation of China ; 13th Five-year Informatization Plan of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/2142]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 |
| 通讯作者 | Yang, Taozhi |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Lu,Zeng, Xiangyun,Liu, Junhui,et al. A Weak Modulation Effect Detected in the Light Curves of KIC 5950759: Intrinsic or Instrumental Effect?[J]. ASTROPHYSICAL JOURNAL,2018,863(2):10. |
| APA | Ma, Lu.,Zeng, Xiangyun.,Liu, Junhui.,Liu, Jinzhong.,Zhao, Fei.,...&Zong, Peng.(2018).A Weak Modulation Effect Detected in the Light Curves of KIC 5950759: Intrinsic or Instrumental Effect?.ASTROPHYSICAL JOURNAL,863(2),10. |
| MLA | Ma, Lu,et al."A Weak Modulation Effect Detected in the Light Curves of KIC 5950759: Intrinsic or Instrumental Effect?".ASTROPHYSICAL JOURNAL 863.2(2018):10. |
入库方式： OAI收割
来源：新疆天文台
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