NAOC Open IR
A compact core-jet structure in the changing-look Seyfert NGC 2617
Yang, Jun1,2; Paragi, Zsolt2; Beswick, Robert J.3; Chen, Wen4; van Bemmel, Ilse M.2; Wu, Qingwen5; An, Tao6; Wu, Xiaocong6; Fan, Lulu7,8,9; Oonk, J. B. R.10,11,12; Liu, Xiang13; Wang, Weihua14
2021-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume503Issue:3Pages:3886-3895
AbstractThe nearby face-on spiral galaxy NGC 2617 underwent an unambiguous 'inside-out' multiwavelength outburst in Spring 2013, and a dramatic Seyfert-type change probably between 2010 and 2012, with the emergence of broad optical emission lines. To search for the jet activity associated with this variable accretion activity, we carried out multiresolution and multiwavelength radio observations. Using the very long baseline interferometric (VLBI) observations with the European VLBI Network at 1.7 and 5.0 GHz, we find that NGC 2617 shows a partially synchrotron self-absorbed compact radio core with a significant core shift, and an optically thin steep-spectrum jet extending towards the north up to about 2 pc in projection. We also observed NGC 2617 with the electronic Multi-Element Remotely Linked Interferometer Network at 1.5 and 5.5 GHz, and revisited the archival data of the Very Large Array (VLA) and the Very Long Baseline Array (VLBA). The radio core had a stable flux density of similar to 1.4 mJy at 5.0 GHz between 2013 June and 2014 January, in agreement with the expectation of a supermassive black hole in the low accretion rate state. The northern jet component is unlikely to be associated with the 'inside-out' outburst of 2013. Moreover, we report that most optically selected changing-look active galactic nuclei (AGN) at z < 0.83 are sub-mJy radio sources in the existing VLA surveys at 1.4 GHz, and it is unlikely that they are more active than normal AGN at radio frequencies.
Keywordgalaxies: active galaxies: individual: NGC 2617 galaxies: jets galaxies: Seyfert radio continuum: galaxies
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN
DOI10.1093/mnras/stab706
WOS KeywordRADIO-SOURCES ; RELATIVISTIC JETS ; VARIABILITY ; GALAXIES ; EMISSION ; QUASARS ; SKY ; DISCOVERY ; CATALOG ; ORIGIN
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFA0404603] ; Chinese Academy of Sciences (CAS)[114231KYSB20170003] ; National Natural Science Foundation of China (NSFC)[11822303] ; National Natural Science Foundation of China (NSFC)[11773020] ; European Commission[RI-261525 NEXPReS] ; European Commission[283393] ; National Aeronautics and Space Administration ; EVN[RY005] ; EVN[EY021]
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Commission ; European Commission ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; EVN ; EVN
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000649000600052
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/77742
Collection中国科学院国家天文台
Corresponding AuthorYang, Jun
Affiliation1.Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, SE-43992 Onsala, Sweden
2.Joint Inst VLBI ERIC JIVE, Postbus 2, NL-7990 AA Dwingeloo, Netherlands
3.Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
4.Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China
5.Huazhong Univ Sci & Technol, Sch Phys, Dept Astron, Wuhan 430074, Peoples R China
6.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Radio Astron, Shanghai 200030, Peoples R China
7.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China
8.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
9.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China
10.SURFsara, POB 94613, NL-1090 GP Amsterdam, Netherlands
11.Leiden Univ, Leiden Observ, Pob 9513, NL-2300 RA Leiden, Netherlands
12.Netherlands Inst Radio Astron ASTRON, NL-7991 PD Dwingeloo, Netherlands
13.Chinese Acad Sci, Xinjiang Astron Observ, Key Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Peoples R China
14.Changzhou Inst Technol, Sch Comp Informat Engn, Changzhou 213032, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jun,Paragi, Zsolt,Beswick, Robert J.,et al. A compact core-jet structure in the changing-look Seyfert NGC 2617[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,503(3):3886-3895.
APA Yang, Jun.,Paragi, Zsolt.,Beswick, Robert J..,Chen, Wen.,van Bemmel, Ilse M..,...&Wang, Weihua.(2021).A compact core-jet structure in the changing-look Seyfert NGC 2617.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,503(3),3886-3895.
MLA Yang, Jun,et al."A compact core-jet structure in the changing-look Seyfert NGC 2617".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 503.3(2021):3886-3895.
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