A comprehensive search for long and short periodic features from an extremely active cycle of FRB 20240114A
文献类型：期刊论文
| 作者 | Zhou, Dengke11; Wang, Pei1,5,10; Fang, Jianhua11; Zhu, Weiwei1,5,6,10; Zhang, Bing7,8,9; Li, Di5,10,13; Feng, Yi11,14; Huang, Yong-Feng15,29; Li KJ(李柯伽)10,31,32,33; Han, Jinlin5,6,10 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2026-02-27 |
| 卷号 | 69期号:4 |
| 关键词 | fast radio burst time series analysis magnetars |
| ISSN号 | 1674-7348 |
| DOI | 10.1007/s11433-025-2866-2 |
| 产权排序 | 第14完成单位 |
| 文献子类 | Article |
| 英文摘要 | Possible periodic features in fast radio bursts (FRBs) may provide insights into their astrophysical origins. Using extensive observations from the five-hundred-meter aperture spherical radio telescope (FAST), we conduct a multi-timescale periodicity search for the exceptionally active repeater FRB 20240114A. Our analysis is based on different datasets for different timescales: for short-timescale periodicity in time of arrivals (TOAs), we use 57 observations from January to August 2024; for long-timescale periodicity, we employ an extended TOA dataset comprising 111 observations spanning from January 2024 to October 2025; and for burst time series analysis, we utilize individual burst data from the 57 FAST observations. We identify three candidate short-timescale periodic signals (0.673, 0.635, and 0.536 s) with significances of 3.2 sigma-6 sigma, each detected in two independent observations. On longer timescales, we detect a significant (143.40 +/- 7.19)-d periodicity with 5.2 sigma significance, establishing FRB 20240114A as a periodic repeater. In burst time series, we find quasi-periodic oscillations in the few hundred Hz range (3.4 sigma and 3.7 sigma) and periodic burst trains with periods of several to tens of milliseconds (3 sigma-3.9 sigma), though these periodic features appear transient and short-lived. The detection of periodic signals at these different timescales indicates that FRB 20240114A exhibits intriguing periodic self-similar characteristics. Despite the comprehensive dataset, no definitive periodicity linked to the source's rotation is confirmed, placing stringent constraints on the intrinsic source properties and the modulation mechanisms. All data are available via the Science Data Bank. |
| 学科主题 | 天文学 ; 射电天文学 |
| URL标识 | 查看原文 |
| 出版地 | 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA |
| WOS关键词 | FAST RADIO-BURSTS ; AREA TELESCOPE CATALOG ; BINARY-SYSTEMS ; TIMING NOISE ; MAGNETAR ; PULSARS ; EMISSION ; OSCILLATIONS ; PRECESSION ; EVOLUTION |
| 资助项目 | National Natural Science Foundation ofChina |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001705010900002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation ofChina |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29033]  |
| 专题 | 中国科学院云南天文台 |
| 通讯作者 | Wang, Pei; Zhu, Weiwei; Zhang, Bing; Li, Di; Feng, Yi |
| 作者单位 | 1.Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing, 102206, China; 2.School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China; 3.School of Computer Science and Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China; 4.College of Physics and Electronic Engineering, Qilu Normal University, Jinan, 250200, China; 5.State Key Laboratory of Radio Astronomy and Technology, Beijing, 100101, China; 6.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, 100049, China; 7.Department of Physics, The University of Hong Kong, Hong Kong, 999077, China; 8.Nevada Center for Astrophysics, University of Nevada, Las Vegas, NV, 89154, USA; 9.Department of Physics and Astronomy, University of Nevada Las Vegas, Las Vegas, NV, 89154, USA; 10.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; |
| 推荐引用方式 GB/T 7714 | Zhou, Dengke,Wang, Pei,Fang, Jianhua,et al. A comprehensive search for long and short periodic features from an extremely active cycle of FRB 20240114A[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2026,69(4). |
| APA | Zhou, Dengke.,Wang, Pei.,Fang, Jianhua.,Zhu, Weiwei.,Zhang, Bing.,...&Zhou, Dejiang.(2026).A comprehensive search for long and short periodic features from an extremely active cycle of FRB 20240114A.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,69(4). |
| MLA | Zhou, Dengke,et al."A comprehensive search for long and short periodic features from an extremely active cycle of FRB 20240114A".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 69.4(2026). |
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来源：云南天文台
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