NAOC Open IR
J2102+6015: a young radio source at z=4.575
Zhang, Yingkang1; An, Tao1; Frey, Sandor2,3; Yang, Xiaolong1; Krezinger, Mate2,4; Titov, Oleg5; Melnikov, Alexey6; de Vicente, Pablo7; Shu, Fengchun1; Wang, Ailing1,8
2021-11-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume507Issue:3Pages:3736-3744
AbstractJets of high-redshift active galactic nuclei (AGNs) can be used to directly probe the activity of the black holes in the early Universe. Radio sources with jets misaligned with respect to the line of sight are expected to dominate the high-redshift AGN population. In this paper, we present the high-resolution imaging results of a z = 4.57 AGN J2102+6015 by analysing its multi-epoch dual-frequency very long baseline interferometry (VLBI) data. The 8.4-GHz VLBI images reveal two major features along the east-west direction separated by similar to 10 mas. From the spectral index map, both features show flat/inverted spectra. The separation between the two features remains almost unchanged over an observation period of similar to 13 yr, placing an upper limit of the separation speed as about 0.04 mas yr(-1). Previous studies have classified the source as a GHz-peaked spectrum quasar. Our results indicate that J2102+6015 is most likely a young, compact symmetric object rather than a blazar-type core-jet source.
Keywordgalaxies: high-redshift galaxies: nuclei quasars: individual: J2102+6015 radio continuum: galaxies
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office
DOI10.1093/mnras/stab2289
WOS KeywordVLBA CALIBRATOR SURVEY ; ACTIVE GALACTIC NUCLEI ; HIGH-REDSHIFT ; SKY SURVEY ; QUASARS ; CATALOG ; IMAGES ; JET ; VLA
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFA0404603] ; Chinese Academy of Sciences[114231KYSB20170003] ; Hungarian Research, Development and Innovation Office[OTKA K134213] ; Hungarian Research, Development and Innovation Office[2018-2.1.14-TET-CN-2018-00001]
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Hungarian Research, Development and Innovation Office ; Hungarian Research, Development and Innovation Office
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000708848000042
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/74891
Collection中国科学院国家天文台
Corresponding AuthorZhang, Yingkang; Frey, Sandor
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.ELKH Res Ctr Astron & Earth Sci, Konkoly Observ, Konkoly Thege Miklos Ut 15-17, H-1121 Budapest, Hungary
3.Eotvos Lorand Univ, Inst Phys, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary
4.Eotvos Lorand Univ, Dept Astron, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary
5.Geosci Australia, POB 378, Canberra, ACT 2601, Australia
6.Russian Acad Sci, Inst Appl Astron, Kutuzova Embankment 10, St Petersburg 191187, Russia
7.Observatorio Yebes IGN, Apartado 148, E-19180 Yebes, Spain
8.Univ Chinese Acad Sci, Coll Astron & Space Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yingkang,An, Tao,Frey, Sandor,et al. J2102+6015: a young radio source at z=4.575[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,507(3):3736-3744.
APA Zhang, Yingkang.,An, Tao.,Frey, Sandor.,Yang, Xiaolong.,Krezinger, Mate.,...&Wang, Ailing.(2021).J2102+6015: a young radio source at z=4.575.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,507(3),3736-3744.
MLA Zhang, Yingkang,et al."J2102+6015: a young radio source at z=4.575".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 507.3(2021):3736-3744.
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