中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 丽江天文观测站（南方基地）
Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs

文献类型：期刊论文

作者Wu, Jiancheng4; Wu, Qingwen4; Lu KX(卢开兴)1,2; Cao, Xinwu3; Lei, Xiangli4; Wang, Mengye4; Fan, Xiao4
刊名ASTROPHYSICAL JOURNAL
出版日期2025-02-01
卷号979期号:2
ISSN号0004-637X
DOI10.3847/1538-4357/ada271
产权排序第2完成单位
文献子类Article
英文摘要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.
学科主题天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词ACTIVE GALACTIC NUCLEI ; BLACK-HOLE MASS ; EMISSION-LINES ; ACCRETION DISKS ; LONG-TERM ; MAGNETIC CONFINEMENT ; ABSORPTION-LINE ; OPTICAL-SPECTRA ; H-ALPHA ; TELL US
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
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001402275300001
出版者IOP Publishing Ltd
资助机构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
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28066]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China;
3.Institute for Astronomy, School of Physics, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, People's Republic of China
4.Department of Astronomy, School of Physics, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 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).

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。