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）
A Characteristic Optical Variability Timescale in Jetted Active Galactic Nuclei: A Large Gamma-Ray Emission Sample

文献类型：期刊论文

作者Xiong DR(熊定荣)1,2,3; Sun, Mouyuan4; Wang, Jun-Xian5,6; Fan, Junhui7,8; Xue, Yongquan5,6; Gu, Minfeng9; Chen, Liang9; Chen, Yongyun10; Ding, Nan11; Guo, Fei12
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2025-07-01
卷号279期号:1
ISSN号0067-0049
DOI10.3847/1538-4365/add481
产权排序第1完成单位
文献子类Article
英文摘要The variability mechanisms from jetted active galactic nuclei (AGNs) are still under debate. Here, the damped random walk (DRW) model, implemented through Gaussian processes (GPs), is used to fit the Zwicky Transient Facility long-term optical light curves of 1684 gamma-ray emission jetted AGNs. This analysis yields one of the largest samples with characteristic optical variability timescales for jetted AGNs. A single DRW model from GPs can fit the optical light curve of most jetted AGNs well/potentially well, while there are still some jetted AGNs whose light curve cannot be fitted well by a single DRW model. After the jet power, proxied by gamma-ray luminosity, is introduced as a new parameter, new relationships among intrinsic variability time scales, black hole mass, and jet power are discovered for efficient accretion AGNs ( tau in proportional to MBH0.29-0.06+0.06Pjet-0.3-0.03+0.03 with scatter of approximately 0.09 dex) and for inefficient accretion AGNs ( tau in proportional to MBH0.06-0.07+0.07Pjet0.37-0.11+0.11 with scatter of approximately 0.14 dex), respectively. Our results support that the optical variability of jetted AGNs with efficient accretion may originate within the standard accretion disk at UV-emitting radii similar to nonjetted AGNs, and is directly related to the acceleration of shock in the jet and then enhanced through the beaming effect in beamed AGNs. For the jetted AGNs with inefficient accretion, the intrinsic timescale is consistent with the escape timescale of electrons.
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LARGE-AREA TELESCOPE ; NARROW-LINE QUASAR ; STRIPE 82 QUASARS ; BL-LAC OBJECTS ; RADIO-LOUD ; X-RAY ; INTRADAY VARIABILITY ; RELATIVISTIC JETS ; POWER SPECTRA ; FERMI BLAZARS
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2023YFE0101200]; National Key RD Program[12033006]; National Key RD Program[12192221]; National Natural Science Foundation of China[YNWR-QNBJ-2020-116]; Yunnan Province Youth Top Talent Project; Yunnan Revitalization Talent Support Program[202301AU070160]; Yunnan Province Foundation; CAS Light of West China Program[CMS-CSST-2021-A06]; CAS Light of West China Program[CMS-CSST-2025-A07]; China Manned Space Project[2081450001]; Training Program for Talents in Xingdian, Yunnan Province[12473019]; National Science Foundation of China[2022SKA0120102]; National SKA Program of China[JCYJ-SHFY-2021-013]; Shanghai Pilot Program for Basic Research-Chinese Academy of Science, Shanghai Branch
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001509797900001
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[2023YFE0101200] ; National Key RD Program[12033006, 12192221] ; National Natural Science Foundation of China[YNWR-QNBJ-2020-116] ; Yunnan Province Youth Top Talent Project ; Yunnan Revitalization Talent Support Program[202301AU070160] ; Yunnan Province Foundation ; CAS Light of West China Program[CMS-CSST-2021-A06, CMS-CSST-2025-A07] ; China Manned Space Project[2081450001] ; Training Program for Talents in Xingdian, Yunnan Province[12473019] ; National Science Foundation of China[2022SKA0120102] ; National SKA Program of China[JCYJ-SHFY-2021-013] ; Shanghai Pilot Program for Basic Research-Chinese Academy of Science, Shanghai Branch
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28372]  
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Xiong DR(熊定荣)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China; xiongdingrong@ynao.ac.cn, baijinming@ynao.ac.cn;
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China;
4.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China;
5.Department of Astronomy, University of Science and Technology of China, Hefei 230026, People's Republic of China;
6.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic of China;
7.Center for Astrophysics, Guangzhou University, Guangzhou 510006, People's Republic of China;
8.Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, People's Republic of China;
9.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China;
10.College of Physics and Electronic Engineering, Qujing Normal University, Qujing 655011, People's Republic of China;
推荐引用方式
GB/T 7714		 Xiong DR,Sun, Mouyuan,Wang, Jun-Xian,et al. A Characteristic Optical Variability Timescale in Jetted Active Galactic Nuclei: A Large Gamma-Ray Emission Sample[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,279(1).
APA 熊定荣.,Sun, Mouyuan.,Wang, Jun-Xian.,Fan, Junhui.,Xue, Yongquan.,...&白金明.(2025).A Characteristic Optical Variability Timescale in Jetted Active Galactic Nuclei: A Large Gamma-Ray Emission Sample.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,279(1).
MLA 熊定荣,et al."A Characteristic Optical Variability Timescale in Jetted Active Galactic Nuclei: A Large Gamma-Ray Emission Sample".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 279.1(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。