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）
Unprecedented Continuum Time Delay Variation Phenomenon in an Active Supermassive Black Hole

文献类型：期刊论文

作者Zhou, Shuying1,2; Sun, Mouyuan1,2; Feng HC(封海成)3,4,5; Li SS(李莎莎)3,4,5; Xue, Yongquan6,7; Wang, Jun-Xian6,7; Cai, Zhen-Yi6,7; Bai JM(白金明)3,4,5; Li, Danyang1,8; Guo, Hengxiao2,9
刊名ASTROPHYSICAL JOURNAL
出版日期2025-06-20
卷号986期号:2
ISSN号0004-637X
DOI10.3847/1538-4357/add468
产权排序第3完成单位
文献子类Article
英文摘要Resolving the accretion disks and broad-line regions of active galactic nuclei (AGNs) can probe the physics behind supermassive black hole (SMBH) fueling and weigh SMBHs. With time-domain observations, the reverberation mapping (RM) technique measures time delays between different light curves, probing the AGN inner structures that are otherwise often too compact to resolve spatially with current facilities. Theoretically, the SMBH accretion disk structure does not evolve over decades. Here we report the significant variations in the continuum time delays of NGC 4151. In the high-flux state, our high-cadence (similar to 2 days) spectroscopy reveals that continuum time delays are 3.8-1.0+1.8 times larger than those in the low-flux state and 14.9 +/- 2.0 times longer than the classical standard thin-disk prediction. Notably, the continuum time delays can be comparable to the time delay between H beta and the 5100 & Aring; continuum, and the latter is commonly used to calculate the BLR sizes. Hence, the BLR sizes are underestimated if the continuum time delays are not considered, which introduces similar to 0.3 dex systematic uncertainties on RM SMBH masses. Our findings underscore that simultaneous continuum and BLR RMs are vital for better deciphering the SMBH accretion and mass function.
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BROAD-LINE REGION ; HIGH ACCRETION RATES ; MAPPING PROJECT ACCRETION ; X-RAY REVERBERATION ; GALACTIC NUCLEI. I. ; NGC 4151 ; SPACE TELESCOPE ; ULTRAVIOLET VARIABILITY ; LUMINOSITY RELATIONSHIP ; SEYFERT-GALAXIES
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2023YFA1607903]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2021YFA1600404]; National Key R&D Program of China[NSFC-12073068]; National Natural Science Foundation of China[2022J06002]; Natural Science Foundation of Fujian Province of China[202301AT070358]; Yunnan Fundamental Research Projects; Special Research Assistant Funding Project of Chinese Academy of Sciences; Yunnan Postdoctoral Research Foundation[2022058]; Youth Innovation Promotion Association of Chinese Academy of Sciences; Young Talent Project of Yunnan Province[NSFC-12393813]; Natural Science Foundation of China[CMS-CSST-2025-A07]; CSST grant; Yunnan Revitalization Talent Support Program; Chinese Academy of Sciences; People's Government of Yunnan Province
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001507326900001
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[2023YFA1607903, 2021YFA1600404] ; National Key R&D Program of China[NSFC-12073068] ; National Natural Science Foundation of China[2022J06002] ; Natural Science Foundation of Fujian Province of China[202301AT070358] ; Yunnan Fundamental Research Projects ; Special Research Assistant Funding Project of Chinese Academy of Sciences ; Yunnan Postdoctoral Research Foundation[2022058] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Young Talent Project of Yunnan Province[NSFC-12393813] ; Natural Science Foundation of China[CMS-CSST-2025-A07] ; CSST grant ; Yunnan Revitalization Talent Support Program ; Chinese Academy of Sciences ; People's Government of Yunnan Province
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28369]  
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
星系类星体研究组
通讯作者Sun, Mouyuan; Feng HC(封海成); Li SS(李莎莎)
作者单位1.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China; msun88@xmu.edu.cn;
2.SHAO-XMU Joint Center for Astrophysics, Xiamen, Fujian 361005, People's Republic of China;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650216, People's Republic of China; hcfeng@ynao.ac.cn, lishasha@ynao.ac.cn;
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan 650216, People's Republic of China;
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China;
6.Department of Astronomy, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China;
7.School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China;
8.High School Affiliated to Yunnan Normal College, Kunming, Yunnan 650506, People's Republic of China;
9.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China;
10.Wayne State University, Department of Physics & Astronomy, 666 W. Hancock Street, Detroit, MI 48201, USA
推荐引用方式
GB/T 7714		 Zhou, Shuying,Sun, Mouyuan,Feng HC,et al. Unprecedented Continuum Time Delay Variation Phenomenon in an Active Supermassive Black Hole[J]. ASTROPHYSICAL JOURNAL,2025,986(2).
APA Zhou, Shuying.,Sun, Mouyuan.,封海成.,李莎莎.,Xue, Yongquan.,...&王建国.(2025).Unprecedented Continuum Time Delay Variation Phenomenon in an Active Supermassive Black Hole.ASTROPHYSICAL JOURNAL,986(2).
MLA Zhou, Shuying,et al."Unprecedented Continuum Time Delay Variation Phenomenon in an Active Supermassive Black Hole".ASTROPHYSICAL JOURNAL 986.2(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。