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| On the Detection and Characterization of Quasiperiodic Oscillations in Astronomical Time Series: Gamma-Ray Burst X-Ray Light Curves as a Test Case | |
Song FF(宋非凡)1,2 ; Mao JR(毛基荣)1,3,4
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2024-05-01 | |
| 卷号 | 966期号:2 |
| DOI | 10.3847/1538-4357/ad390a |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 摘要 | The study of temporal properties of variable sources can elucidate their physical processes. In this context, we present a critical study comparing three approaches to periodic or quasiperiodic behavior: Gaussian process, power spectrum, and wavelet analysis, using celerite, Lomb-Scargle periodograms, and weighted wavelet Z-transforms, respectively. We use 15 Swift X-ray Telescope light curves of short gamma-ray bursts (sGRBs) as examples. A comprehensive analysis of two sGRB X-ray light curves is performed. The results reveal the importance of artifacts, largely in the form of false quasiperiodic oscillation signals, possibly introduced by preprocessing (such as detrending) or other aspects of the analysis. The exploration described in this paper can be helpful for future studies of variability in gamma-ray bursts, active galactic nuclei, and other astronomical sources. |
| 资助项目 | NSFC[2023YFE0101200]; National Key RD program[NSFC 12393813]; National Natural Science Foundation of China; Yunnan Revitalization Talent Support Program |
| 项目资助者 | NSFC[2023YFE0101200] ; National Key RD program[NSFC 12393813] ; National Natural Science Foundation of China ; Yunnan Revitalization Talent Support Program |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 星系与宇宙学 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:001218738000001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | MAGNETAR ; PRECESSION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27201 |
| 专题 | 星系类星体研究组 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China; [email protected]; 2.University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China; 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, 100012 Beijing, People's Republic of China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Song FF,Mao JR. On the Detection and Characterization of Quasiperiodic Oscillations in Astronomical Time Series: Gamma-Ray Burst X-Ray Light Curves as a Test Case[J]. ASTROPHYSICAL JOURNAL,2024,966(2). |
| APA | 宋非凡,&毛基荣.(2024).On the Detection and Characterization of Quasiperiodic Oscillations in Astronomical Time Series: Gamma-Ray Burst X-Ray Light Curves as a Test Case.ASTROPHYSICAL JOURNAL,966(2). |
| MLA | 宋非凡,et al."On the Detection and Characterization of Quasiperiodic Oscillations in Astronomical Time Series: Gamma-Ray Burst X-Ray Light Curves as a Test Case".ASTROPHYSICAL JOURNAL 966.2(2024). |
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