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题名: A single radio-emitting nucleus in the dual AGN candidate NGC 5515
作者: Gabanyi, K. E.1, 2, 3; Frey, S.4; Xiao, T.5, 6, 7; Paragi, Z.8; An, T.7, 9; Kun, E.1, 2; Gergely, L. A.1, 2, 10
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2014-09-11
卷号: 443, 期号:2, 页码:1509-1514
关键词: techniques: interferometric ; techniques: spectroscopic ; galaxies: individual: NGC 5515 ; galaxies: Seyfert ; radio continuum: galaxies
DOI: 10.1093/mnras/stu1234
文章类型: Article
英文摘要: The Seyfert galaxy NGC 5515 has double-peaked narrow-line emission in its optical spectrum, and it has been suggested that this could indicate that it has two active nuclei. We observed the source with high-resolution very long baseline interferometry at two radio frequencies, reduced archival Very Large Array data, and re-analysed its optical spectrum. We detected a single, compact radio source at the position of NGC 5515, with no additional radio emission in its vicinity. The optical spectrum of the source shows that the blue and red components of the double-peaked lines have very similar characteristics. While we cannot rule out unambiguously that NGC 5515 harbours a dual AGN, the assumption of a single AGN provides a more plausible explanation for the radio observations and the optical spectrum.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: ACTIVE GALACTIC NUCLEI ; NARROW-LINE REGION ; BLACK-HOLE MASS ; DIGITAL SKY SURVEY ; VELOCITY DISPERSION ; EMISSION-LINES ; DATA RELEASE ; GALAXIES ; QUASARS ; KINEMATICS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000340436800045
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15775
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

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作者单位: 1.Univ Szeged, Dept Theoret Phys, H-6720 Szeged, Hungary
2.Univ Szeged, Dept Expt Phys, H-6720 Szeged, Hungary
3.MTA Res Ctr Astron & Earth Sci, Konkoly Observ, H-1525 Budapest, Hungary
4.FOMI Satellite Geodet Observ, H-1592 Budapest, Hungary
5.Chinese Acad Sci, Partner Grp, Max Planck Inst Astrophys, Shanghai 200030, Peoples R China
6.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
7.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
8.Joint Inst VLBI Europe, NL-7990 AA Dwingeloo, Netherlands
9.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
10.Tokyo Univ Sci, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan
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