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Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei

文献类型：期刊论文

作者Xu, Wancheng5,6; Cui, Lang5,7,8; Liu, Xiang5,7,8; An, Tao9; Cao, Hongmin10; Jiang, Pengfei5; Ho, Luis C.1,4; Chang, Ning5; Yang, Xiaolong9; Shen, Yuling5
刊名ASTROPHYSICAL JOURNAL
出版日期2024-07-01
卷号969期号:1页码:36
ISSN号0004-637X
DOI10.3847/1538-4357/ad463b
产权排序1
英文摘要It is believed that dual active galactic nuclei (AGN) form during galaxy mergers. Studying dual-AGN emission can provide valuable insights into galaxy merging and evolution. To investigate parsec-scale radio emission properties, we observed eight radio components of four selected dual-AGN systems using the Very Long Baseline Array (VLBA) at 5 GHz in multiple-phase-center mode. Among them, two compact radio components, labeled J0051+0020B and J2300-0005A, were detected clearly on parsec scales for the first time. However, the radio emission of the other six components was resolved out in the high-resolution images. We provide the values or upper limits of the brightness temperature and radio emission power, and analyze the emission origins in detail for each target. Based on their physical properties reported in this work and in the literature, we suggest that the radio emission in J0051+0020B and J2300-0005A originates primarily from compact jets, while the other six sources show more complex emission mechanisms. In addition, our VLBA observations suggest that the systematic X-ray deficit in our dual-AGN sample is likely attributed to the tidally induced effect and possibly a viewing angle effect.
WOS关键词DIGITAL SKY SURVEY ; BINARY BLACK-HOLE ; ENHANCED STAR-FORMATION ; PALOMAR-GREEN QUASARS ; SURVEY STRIPE 82 ; SDSS-IV MANGA ; X-RAY ; VLBI OBSERVATIONS ; OFF-NUCLEUS ; GALAXY PAIRS
资助项目CAS Light of West China Program[2021-XBQNXZ-005] ; National SKA Program of China[2022SKA0120102] ; National Key RD Program[2018YFA0404602] ; National Key RD Program[2023YFE0102300] ; Tianshan Talent Training Program[2023TSYCCX0099] ; Xinjiang Tianchi Talent Program ; Urumqi Nanshan Astronomy and Deep Space Exploration Observation and Research Station of Xinjiang[XJYWZ2303] ; National Science Foundation of China[11721303] ; National Science Foundation of China[11991052] ; National Science Foundation of China[12011540375] ; National Science Foundation of China[12233001] ; National Key R&D Program of China[2022YFF0503401] ; China Manned Space Project[CMS-CSST-2021-A04] ; China Manned Space Project[CMS-CSST-2021-A06] ; China Manned Space Project[BL255A] ; China Manned Space Project[BL255B]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001256803900001
出版者IOP Publishing Ltd
资助机构CAS Light of West China Program ; National SKA Program of China ; National Key RD Program ; Tianshan Talent Training Program ; Xinjiang Tianchi Talent Program ; Urumqi Nanshan Astronomy and Deep Space Exploration Observation and Research Station of Xinjiang ; National Science Foundation of China ; National Key R&D Program of China ; China Manned Space Project
源URL[http://ir.xao.ac.cn/handle/45760611-7/6792]  
专题星系宇宙学研究团组
通讯作者Cui, Lang
作者单位1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
2.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China
3.Xinjiang Normal Univ, Coll Phys & Elect Engn, 102 Xinyi Rd, Urumqi 830054, Peoples R China
4.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
5.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China
6.Univ Chinese Acad Sci, Coll Astron & Space Sci, 1 Yanqihu East Rd, Beijing 101408, Peoples R China
7.Chinese Acad Sci, Key Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Peoples R China
8.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Peoples R China
9.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
10.Shangqiu Normal Univ, Sch Elect & Elect Engn, 298 Wenhua Rd, Shangqiu 476000, Henan, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Wancheng,Cui, Lang,Liu, Xiang,et al. Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei[J]. ASTROPHYSICAL JOURNAL,2024,969(1):36.
APA Xu, Wancheng.,Cui, Lang.,Liu, Xiang.,An, Tao.,Cao, Hongmin.,...&Zhang, Ming.(2024).Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei.ASTROPHYSICAL JOURNAL,969(1),36.
MLA Xu, Wancheng,et al."Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei".ASTROPHYSICAL JOURNAL 969.1(2024):36.

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