Probable quasi-periodic oscillations in the TESS observations of blazars in the Swift X-ray Survey
文献类型：期刊论文
| 作者 | Tripathi, Ashutosh2,3; Wiita, Paul J.1; Smith, Krista Lynne2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2026 |
| 卷号 | 545期号:3页码:staf2211 |
| 关键词 | black hole physics relativistic processes methods: data analysis BL Lacertae objects: general galaxies: general |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/staf2211 |
| 产权排序 | 1 |
| 英文摘要 | This work presents possible quasi-periodic oscillations (QPOs) in the Transiting Exoplanet Survey Satellite observations of blazars that are in the 157-month hard X-ray survey done by Swift's Burst Alert Telescope. We report observations from four sources, J1104.4 + 3812, J1654.0 + 3946, J0353.4-6830, and J1941.3-6216, that show at least 3cr local significance in generalized Lomb-Scargle periodogram and weighted wavelet Z-transform methods. These results are also checked using a continuous autoregressive moving average analysis that also predicts the absent data tentatively using stochastic differential equations. Each of these four sources exhibits a nominal QPO signal frequency in the range of 0.5-1.1 d(-1), resulting in at least five putative cycles. However, when the number of frequencies examined and the number of sources examined are both taken into account, the global significances are reduced to approximate to 2.2cr for J1654.0 + 3964 (Mrk 501), and to approximate to 1.9cr for other sources. These QPOs are thought to arise from the processes within the relativistic jet. Plausible explanations include the kink instability, which arises due to current-driven instabilities in the plasma or the precession of substructures, or mini-jets, within the jets. |
| WOS关键词 | SUPERMASSIVE BLACK-HOLE ; ACTIVE GALACTIC NUCLEI ; LIGHT CURVES ; OPTICAL VARIABILITY ; MULTIWAVELENGTH VARIABILITY ; RADIO VARIABILITY ; MARKARIAN 421 ; TIME-SERIES ; FERMI-LAT ; MRK 501 |
| 资助项目 | Tianshan Talent Training Program[2023TSYCCX0099] ; CAS 'Light of West China' Program[2021-XBQNXZ-005] ; National SKA Program of China[2022SKA0120102] ; Xinjiang Tianchi Talent Program ; Urumqi Nanshan Astronomy and Deep Space Exploration Observation and Research Station of Xinjiang[XJYWZ2303] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001645442300001 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Tianshan Talent Training Program ; CAS 'Light of West China' Program ; National SKA Program of China ; Xinjiang Tianchi Talent Program ; Urumqi Nanshan Astronomy and Deep Space Exploration Observation and Research Station of Xinjiang |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8447]  |
| 专题 | 星系宇宙学研究团组 |
| 通讯作者 | Tripathi, Ashutosh |
| 作者单位 | 1.Coll New Jersey, Dept Phys, 2000 Pennington Rd, Ewing, NJ 08628 USA 2.Texas A&M Univ, George P & Cynthia Woods Mitchell Inst, Fundamental Phys & Astron, College Stn, TX 77843 USA 3.Xinjiang Astron Observ, CAS, 150 Sci-1 St, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tripathi, Ashutosh,Wiita, Paul J.,Smith, Krista Lynne. Probable quasi-periodic oscillations in the TESS observations of blazars in the Swift X-ray Survey[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2026,545(3):staf2211. |
| APA | Tripathi, Ashutosh,Wiita, Paul J.,&Smith, Krista Lynne.(2026).Probable quasi-periodic oscillations in the TESS observations of blazars in the Swift X-ray Survey.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,545(3),staf2211. |
| MLA | Tripathi, Ashutosh,et al."Probable quasi-periodic oscillations in the TESS observations of blazars in the Swift X-ray Survey".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 545.3(2026):staf2211. |
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来源：新疆天文台
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