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. 射电天文研究组
Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy

文献类型：期刊论文

作者Yang, Jun14; Paragi, Zsolt13; Frey, Sándor10,11,12; Gurvits, Leonid I9,13; Liao, Mai7,8; Liu, Xiang6; Cui, Lang6; Yang, Xiaolong5; Chen W(陈文)3,4,14; Varenius, Eskil14
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2023-02-22
卷号520期号:4页码:5964-5973
ISSN号0035-8711
关键词galaxies:active galaxies:dwarf individual galaxies:individual:SDSS J090613.77+561015.2 radio continuum:galaxies
DOI10.1093/mnras/stad493
产权排序第11完成单位
文献子类Article
英文摘要Dwarf galaxies are characterized by a very low luminosity and low mass. Because of significant accretion and ejection activity of massive black holes, some dwarf galaxies also host lo w-luminosity acti ve galactic nuclei (AGNs). In a few dwarf AGNs, very long baseline interferometry (VLBI) observations have found faint non-thermal radio emission. SDSS J090613.77 + 561015.2 is a dwarf AGN owning an intermediate-mass black hole (IMBH) with a mass of M-BH = 3 . 6 (+5.9) (-2.3 )x 10 (5) M(? )and showing a rarely seen two-component radio structure in its radio nucleus. To further probe their nature, i.e. the IMBH jet activity, we performed additional deep observations with the European VLBI Network (EVN) at 1.66 and 4.99 GHz. We find the more diffuse emission regions and structure details. These new EVN imaging results allow us to reveal a two-sided jet morphology with a size up to about 150 mas (projected length similar to 140 pc) and a radio luminosity of about 3 x 10( 38) erg s( -1). The peak feature has an optically thin radio spectrum and thus more likely represents a relatively young ejecta instead of a jet base. The EVN study on SDSS J090613.77 + 561015.2 demonstrates the existence of episodic, relatively large-scale, and powerful IMBH jet activity in dwarf AGNs. Moreo v er, we collected a small sample of VLBI-detected dwarf AGNs and investigated their connections with normal AGNs. We notice that these radio sources in the dwarf AGNs tend to have steep spectra and small linear sizes, and possibly represent ejecta from scaled-down episodic jet activity.
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GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词COMPACT STEEP-SPECTRUM ; RADIO-SOURCE COUNTERPARTS ; GALACTIC NUCLEI ; VLBI OBSERVATIONS ; STAR-FORMATION ; X-RAY ; FUNDAMENTAL PLANE ; SNAPSHOT SURVEY ; CENTRAL ENGINE ; AGN
资助项目EVN project[EY035] ; National SKA Program of China[2022SKA0120102] ; CAS `Light of West China' Program[2021-XBQNXZ-005] ; National Natural Science Foundation of China (NSFC)[U2031212] ; National Natural Science Foundation of China (NSFC)[61931002] ; Hungarian National Research, Development and Innovation Office[OTKA K134213] ; NSFC[11903079] ; NSFC[12103076] ; Shanghai Sailing Program[21YF1455300] ; China Postdoctoral Science Foundation[2021M693267]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000943248300020
资助机构EVN project[EY035] ; National SKA Program of China[2022SKA0120102] ; CAS `Light of West China' Program[2021-XBQNXZ-005] ; National Natural Science Foundation of China (NSFC)[U2031212, 61931002] ; Hungarian National Research, Development and Innovation Office[OTKA K134213] ; NSFC[11903079, 12103076] ; Shanghai Sailing Program[21YF1455300] ; China Postdoctoral Science Foundation[2021M693267]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25878]  
专题云南天文台_射电天文研究组
通讯作者Yang, Jun
作者单位1.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China;
3.University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650216, China;
5.Shanghai Astronomical Observatory, Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Shanghai 200030, China;
6.Xinjiang Astronomical Observatory, Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi 830011, China;
7.School of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China;
8.CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei, Anhui 230026, China;
9.Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, NL-2629 HS Delft, the Netherlands;
10.Institute of Physics, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary;
推荐引用方式
GB/T 7714		 Yang, Jun,Paragi, Zsolt,Frey, Sándor,et al. Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,520(4):5964-5973.
APA Yang, Jun.,Paragi, Zsolt.,Frey, Sándor.,Gurvits, Leonid I.,Liao, Mai.,...&Chang, Ning.(2023).Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,520(4),5964-5973.
MLA Yang, Jun,et al."Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 520.4(2023):5964-5973.

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。