The large amplitude X-ray variability in NGC 7589: possible evidence for accretion mode transition
文献类型：期刊论文
| 作者 | Liu, Zhu1; Liu, He-Yang1,2; Cheng, Huaqing1,2; Qiao, Erlin1,2; Yuan, Weimin1,2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 492期号:2页码:2335-2346 |
| ISSN号 | 0035-8711 |
| 关键词 | accretion accretion discs galaxies: active X-rays: individual: NGC 7589 |
| DOI | 10.1093/mnras/stz3579 |
| 英文摘要 | We report the discovery of large amplitude X-ray variability in the low-luminosity active galactic nucleus NGC 7589, and present possible observational evidence for accretion mode transition in this source. Long-term X-ray flux variations by a factor of more than 50 are found using X-ray data obtained by Swift/X-Ray Telescope and XMM-Newton over 17 yr. Results of long-term monitoring data in the UV, optical, and infrared bands over similar to 20 yr are also presented. The Eddington ratio.Edd increased from 10(-3) to similar to 0.13, suggesting a transition of the accretion flow from an advection dominated accretion flow to a standard thin accretion disc. Further evidence supporting the thin disc in the high-luminosity state is found by the detection of a significant soft X-ray component in the X-ray spectrum. The temperature of this component (similar to 19(-7)(+15) eV, fitted with a blackbody model) is in agreement with the predicted temperature of the inner region for a thin disc around a black hole (BH) with mass of similar to 10(7)M(circle dot). These results may indicate that NGC 7589 had experienced accretion mode transition over a time-scale of a few years, suggesting the idea that similar accretion processes are at work for massive BH and BH X-ray binaries. |
| WOS关键词 | ADVECTION-DOMINATED ACCRETION ; ACTIVE GALACTIC NUCLEI ; BROAD IRON LINES ; BLACK-HOLE ; XMM-NEWTON ; SPECTRAL VARIABILITY ; STATE TRANSITION ; DISK ; EVAPORATION ; QUASARS |
| 资助项目 | Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15052100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100] ; National Natural Science Foundation of China[11773037] ; National Natural Science Foundation of China[11673026] ; National Natural Science Foundation of China[U1631238] ; ESA Member States ; NASA ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy ; Japanese Monbukagakusho ; Max Planck Society ; Higher Education Funding Council for England ; American Museum of Natural History ; Astrophysical Institute Potsdam ; University of Basel ; University of Cambridge ; Case Western Reserve University ; University of Chicago ; Drexel University ; Fermilab ; Institute for Advanced Study ; Japan Participation Group ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astrophysics (MPA) ; New Mexico State University ; Ohio State University ; University of Pittsburgh ; University of Portsmouth ; Princeton University ; United States Naval Observatory ; University of Washington |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000512297600058 |
| 资助机构 | Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ESA Member States ; ESA Member States ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astrophysics (MPA) ; Max-Planck-Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ESA Member States ; ESA Member States ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astrophysics (MPA) ; Max-Planck-Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ESA Member States ; ESA Member States ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astrophysics (MPA) ; Max-Planck-Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; ESA Member States ; ESA Member States ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; National Science Foundation ; National Science Foundation ; U.S. Department of Energy ; U.S. Department of Energy ; Japanese Monbukagakusho ; Japanese Monbukagakusho ; Max Planck Society ; Max Planck Society ; Higher Education Funding Council for England ; Higher Education Funding Council for England ; American Museum of Natural History ; American Museum of Natural History ; Astrophysical Institute Potsdam ; Astrophysical Institute Potsdam ; University of Basel ; University of Basel ; University of Cambridge ; University of Cambridge ; Case Western Reserve University ; Case Western Reserve University ; University of Chicago ; University of Chicago ; Drexel University ; Drexel University ; Fermilab ; Fermilab ; Institute for Advanced Study ; Institute for Advanced Study ; Japan Participation Group ; Japan Participation Group ; Johns Hopkins University ; Johns Hopkins University ; Joint Institute for Nuclear Astrophysics ; Joint Institute for Nuclear Astrophysics ; Kavli Institute for Particle Astrophysics and Cosmology ; Kavli Institute for Particle Astrophysics and Cosmology ; Korean Scientist Group ; Korean Scientist Group ; Chinese Academy of Sciences (LAMOST) ; Chinese Academy of Sciences (LAMOST) ; Los Alamos National Laboratory ; Los Alamos National Laboratory ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astronomy (MPIA) ; Max-Planck-Institute for Astrophysics (MPA) ; Max-Planck-Institute for Astrophysics (MPA) ; New Mexico State University ; New Mexico State University ; Ohio State University ; Ohio State University ; University of Pittsburgh ; University of Pittsburgh ; University of Portsmouth ; University of Portsmouth ; Princeton University ; Princeton University ; United States Naval Observatory ; United States Naval Observatory ; University of Washington ; University of Washington |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/54029]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Liu, Zhu |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zhu,Liu, He-Yang,Cheng, Huaqing,et al. The large amplitude X-ray variability in NGC 7589: possible evidence for accretion mode transition[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,492(2):2335-2346. |
| APA | Liu, Zhu,Liu, He-Yang,Cheng, Huaqing,Qiao, Erlin,&Yuan, Weimin.(2020).The large amplitude X-ray variability in NGC 7589: possible evidence for accretion mode transition.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,492(2),2335-2346. |
| MLA | Liu, Zhu,et al."The large amplitude X-ray variability in NGC 7589: possible evidence for accretion mode transition".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492.2(2020):2335-2346. |
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来源：国家天文台
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