Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey
文献类型：期刊论文
| 作者 | Wang, Liang1,2,3; Yi, Tingfeng1,2,3; Zhang, Sun1,2,3; Dhiman, Vinit4; Dong L(董亮)3
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| 刊名 | Publications of the Astronomical Society of Japan
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| 出版日期 | 2025-04-01 |
| 卷号 | 77期号:2页码:381-388 |
| 关键词 | cosmology: observations galaxies: general large scale structure of universe |
| ISSN号 | 0004-6264 |
| DOI | 10.1093/pasj/psaf005 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Journal article (JA) |
| 英文摘要 | In this paper, we conducted a search for the quasi-periodic oscillations (QPOs) in the hard X-ray (14–195 keV) light curves of active galactic nuclei (AGNs). We retrieved monthly-binned light curve data from the 157-month Swift Burst Alert Telescope (BAT) catalog and focused on various types of AGNs, including a total of 1099 sources. The Jurkevich method, the Lomb–Scargle periodogram method, and the weighted wavelet Z-transform method were employed to search for the QPO. Based on these three methods, we found three promising candidates of AGNs with the QPO: NGC 2110 (SWIFT J0552.2−0727), Mkn 421 (SWIFT J1104.4+3812), and 3C 273 (SWIFT J1229.1+0202). Among them, NGC 2110 has a period of ∼ 1134 d; Mkn 421 has a period of ∼642 d; and 3C 273 has a period of ∼ 367 d. We discuss several physical mechanisms for the origin of the QPO, including the pulsational instabilities of the accretion disk, jet precession/rotation or helical structure, and supermassive binary black hole systems. © The Author(s) 2025. Published by Oxford University Press on behalf of the Astronomical Society of Japan. |
| 学科主题 | 星系与宇宙学 |
| URL标识 | 查看原文 |
| 资助项目 | N/A |
| 语种 | 英语 |
| 资助机构 | N/A |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28294]  |
| 专题 | 云南天文台_射电天文研究组 |
| 作者单位 | 1.Key Laboratory of Colleges, Universities in Yunnan Province for High-energy Astrophysics, School of Physics and Electronic Information, Yunnan Normal University, Yunnan Province, Kunming, 650500, China; 2.Guangxi Key Laboratory of Relativistic Astrophysics, Guangxi University, Guangxi Province, Nanning, 530004, China; 3.Yunnan Province China-Malaysia HF-VHF Advanced Radio Astronomy Technology International Joint Laboratory, Yunnan Observatories, Chinese Academy of Sciences, Yunnan Province, Kunming, 650011, China; 4.Department of Astronomy, School of Physics and Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Yunnan Province, Kunming, 650091, China |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Yi, Tingfeng,Zhang, Sun,et al. Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey[J]. Publications of the Astronomical Society of Japan,2025,77(2):381-388. |
| APA | Wang, Liang,Yi, Tingfeng,Zhang, Sun,Dhiman, Vinit,&Dong L.(2025).Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey.Publications of the Astronomical Society of Japan,77(2),381-388. |
| MLA | Wang, Liang,et al."Search for quasi-periodic oscillations of AGNs in the Swift BAT 157-month hard X-ray survey".Publications of the Astronomical Society of Japan 77.2(2025):381-388. |
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来源：云南天文台
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