| Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs | |
Wu, Jiancheng1; Wu, Qingwen1; Lu KX(卢开兴)2,3 ; Cao, Xinwu4; Lei, Xiangli1; Wang, Mengye1; Fan, Xiao1
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2025-02-01 | |
| 卷号 | 979期号:2 |
| DOI | 10.3847/1538-4357/ada271 |
| 产权排序 | 第2完成单位 |
| 收录类别 | SCI |
| 摘要 | The geometry and kinematics of the broad-line region (BLR) in active galactic nuclei (AGNs) are still unclear, which is crucial for studying the physics and evolution of supermassive black holes and AGNs. The broad-line profile provides valuable information on BLR geometry and kinematics. In this work, we explore the evolution of line profiles in variable AGNs based on the BLR model of Czerny and Hryniewicz, where the BLR is driven by the radiation pressure acting on dust at the surface layers of the accretion disk. The line profiles in the low-Eddington-ratio regime show a double-peak profile, which will become a single peak at high Eddington ratios. The high metallicity of Z greater than or similar to 5 Z circle dot is required to reproduce the observational anticorrelation between the peak separation of broad lines and the Eddington ratio for a sample of AGNs. For the broad lines in variable AGNs, it will take several years to several decades to change their line profile if the disk luminosity suffers strong variation in a much shorter timescale. More monitoring of the broad line and continuum in strongly variable AGNs can shed special light on BLR physics. |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12233007]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12073068]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[U1931203]; National Natural Science Foundation of China[CMS-CSST-2021-A06]; China Manned Space Project |
| 项目资助者 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12233007, 12073068, U1931203] ; National Natural Science Foundation of China[CMS-CSST-2021-A06] ; China Manned Space Project |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 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:001402275300001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; EMISSION-LINES ; ACCRETION DISKS ; LONG-TERM ; MAGNETIC CONFINEMENT ; ABSORPTION-LINE ; OPTICAL-SPECTRA ; H-ALPHA ; TELL US |
| 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/114a53/28066 |
| 专题 | 南方基地 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Department of Astronomy, School of Physics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, People's Republic of China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China; 4.Institute for Astronomy, School of Physics, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Wu, Jiancheng,Wu, Qingwen,Lu KX,et al. Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs[J]. ASTROPHYSICAL JOURNAL,2025,979(2). |
| APA | Wu, Jiancheng.,Wu, Qingwen.,卢开兴.,Cao, Xinwu.,Lei, Xiangli.,...&Fan, Xiao.(2025).Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs.ASTROPHYSICAL JOURNAL,979(2). |
| MLA | Wu, Jiancheng,et al."Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs".ASTROPHYSICAL JOURNAL 979.2(2025). |
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| Exploring Variation （672KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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