Institutional Repository of Radio Astronomy Research Laboratory
| Magnetically driven relativistic jet in the high-redshift blazar OH 471 | |
Guo, S.1,2,3; An, T.1,2,3; Liu, Y.1; Sotnikova, Y.4,11; Volvach, A.5; Mufakharov, T.4,6,11; Chen, L.1 ; Cui, L.7; Wang, A.1,2; Xu, Z.1; Zhang, Y.1; Xu, W.2,7; Kovalev, Y. A.8,11; Kovalev, Y. Y.9; Kharinov, M.10; Erkenov, A.4; Semenova, T.4; Volvach, L.5
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| 2024-05-17 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 685Pages:L11 |
| Contribution Rank | 7 |
| Abstract | Context. Understanding the mechanisms that launch and shape powerful relativistic jets from supermassive black holes (SMBHs) in high-redshift active galactic nuclei (AGNs) is crucial for probing the co-evolution of SMBHs and galaxies over cosmic time. Aims. We focus on the high-redshift (z = 3.396) blazar OH 471 to explore the jet launching mechanism in the early Universe. Methods. Using multi-frequency radio monitoring observations and high-resolution Very Long Baseline Interferometry (VLBI) imaging over three decades, we studied the milliarcsecond structure and long-term variability of OH 471. Results. Our spectral modeling of the radio flux densities revealed a synchrotron self-absorbed spectrum, indicating strong magnetic fields within the compact core. By applying the flux freezing approximation, we estimated the magnetic flux carried by the jet. We found that it reaches or exceeds theoretical predictions for jets powered by black hole spin energy via the Blandford-Znajek mechanism. This implies that OH 471 is in a magnetically arrested disk (MAD) state, where the magnetic flux accumulated near the horizon regulates the accretion flow, allowing for an efficient extraction of black hole rotational energy. Conclusions. Our study demonstrates the dominance of MAD accretion in powering the prominent radio flares and relativistic jets observed in the radio-loud AGN named OH 471. Statistical studies of larger samples of high-redshift AGNs will shed light on the role of MAD accretion in launching and accelerating the earliest relativistic jets. |
| Keyword | galaxies: high-redshift BL Lacertae objects: individual: 0642+449 galaxies: magnetic fields |
| DOI | 10.1051/0004-6361/202449934 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | FLUX-DENSITY SCALE ; HIGH-FREQUENCY PEAKERS ; GHZ VLBI SURVEY ; RADIO LOUDNESS ; BLACK-HOLES ; QUASARS ; MULTIFREQUENCY ; GROWTH ; KINEMATICS ; REDUCTION |
| Funding Project | National SKA Program of China ; Youth Innovation Promotion Association CAS Program[2021258] ; FAST Special Program[NSFC 12041301] ; Shanghai Post-doctoral Excellence Program ; Shanghai Sailing Program[23YF1455700] ; China Postdoctoral Science Foundation[2023M733625] ; University of Chinese Academy of Sciences ; European Research Council (ERC) under the European Union[101018682] ; Ministry of Science and Higher Education of the Russian Federation[075-15-2024-541] ; [2022SKA0120102] ; [2022SKA0130103] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001226200200009 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | National SKA Program of China ; Youth Innovation Promotion Association CAS Program ; FAST Special Program ; Shanghai Post-doctoral Excellence Program ; Shanghai Sailing Program ; China Postdoctoral Science Foundation ; University of Chinese Academy of Sciences ; European Research Council (ERC) under the European Union ; Ministry of Science and Higher Education of the Russian Federation |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6896 |
| Collection | 射电天文研究室_星系宇宙学研究团组 |
| Corresponding Author | Guo, S.; An, T. |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Key Lab Radio Astron & Technol, CAS, A20 Datun Rd, Beijing 100101, Peoples R China 4.RAS, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia 5.Crimean Astrophys Observ, Radio Astron & Geodynam Dept, Katsively 22, Crimea, Ukraine 6.Kazan Fed Univ, 18 Kremlyovskaya St, Kazan 420008, Russia 7.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 8.Lebedev Phys Inst, Astro Space Ctr, Leninsky prospect 53, Moscow 117997, Russia 9.Max Planck Inst Radioastron, Hugel 69, DE-53121 Bonn, Germany 10.Russian Acad Sci, Inst Appl Astron, Kutuzova Embankment 10, St Petersburg 191187, Russia 11.Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia |
| Recommended Citation GB/T 7714 | Guo, S.,An, T.,Liu, Y.,et al. Magnetically driven relativistic jet in the high-redshift blazar OH 471[J]. ASTRONOMY & ASTROPHYSICS,2024,685:L11. |
| APA | Guo, S..,An, T..,Liu, Y..,Sotnikova, Y..,Volvach, A..,...&Volvach, L..(2024).Magnetically driven relativistic jet in the high-redshift blazar OH 471.ASTRONOMY & ASTROPHYSICS,685,L11. |
| MLA | Guo, S.,et al."Magnetically driven relativistic jet in the high-redshift blazar OH 471".ASTRONOMY & ASTROPHYSICS 685(2024):L11. |
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| Guo-2024-Magneticall（5319KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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