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Periodicity analysis of the radio light curve of the Seyfert galaxy III Zw 2
Li, HZ1,2; Xie GZ(谢光中)1,3; Dai, H1; Chen, LE2; Yi, TF1; Tang, YK4; Bao, YY2; Lu, LZ5; Na, WW2; Ren, JY2; Li, HZ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
Source PublicationNEW ASTRONOMY
2010-02
Volume15Issue:2Pages:254-259
DOI10.1016/j.newast.2009.08.001
Contribution Rank第3完成单位
Indexed BySCI
KeywordGalaxies: Active Galaxies: Individual (Iii Zw 2) Galaxies: Jets Galaxies: Seyfert
AbstractWe have analyzed the radio light curves of the Seyfert galaxy III Zw 2 at 2:? and 37 GHz taken from the database of Metsahovi Radio Observatory, and found evidence of quasi-periodic activity. The light curves show great activity, with very complicated non-sinusoidal variations. Period of P(obs) = 5.14 +/- 0.19 yr was consistently identified by three methods: the Jurkevich method, the power spectrum intensity estimation method and the discrete correlation function method. The variability period of about 5.14 yr in III Zw 2 is caused most likely by the helical motion of the jet. (C) 2009 Elsevier B.V. All rights reserved.
Funding OrganizationNational Natural Science Foundation of China [10878013] ; Natural Science Foundation of Yunnan Province [2006A0049M, 2007A230M]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1384-1076
URL查看原文
WOS IDWOS:000271732000008
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSUPERMASSIVE BLACK-HOLES ; ACTIVE GALACTIC NUCLEI ; BL-LACERTAE OBJECTS ; RAY-LOUD BLAZARS ; EXTRAGALACTIC OBJECTS ; HELICAL JETS ; SPACED DATA ; MKN 501 ; VARIABILITY ; EMISSION
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7048
Collection星系研究组
Corresponding AuthorLi, HZ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
Affiliation1.Physics Department, Yunnan University, Kunming 650091, PR China
2.Physics Department, Yuxi Normal College, Yuxi 653100, PR China
3.National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, PR China
4.Physics Department, Dezhou University, Dezhou 253023, PR China
5.Physics Department, Guangxi University, Nanning, Guangxi 530004, PR China
Recommended Citation
GB/T 7714
Li, HZ,Xie GZ,Dai, H,et al. Periodicity analysis of the radio light curve of the Seyfert galaxy III Zw 2[J]. NEW ASTRONOMY,2010,15(2):254-259.
APA Li, HZ.,Xie GZ.,Dai, H.,Chen, LE.,Yi, TF.,...&Li, HZ .(2010).Periodicity analysis of the radio light curve of the Seyfert galaxy III Zw 2.NEW ASTRONOMY,15(2),254-259.
MLA Li, HZ,et al."Periodicity analysis of the radio light curve of the Seyfert galaxy III Zw 2".NEW ASTRONOMY 15.2(2010):254-259.
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