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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.
发表期刊NEW ASTRONOMY
2010-02
卷号15期号:2页码:254-259
DOI10.1016/j.newast.2009.08.001
产权排序第3完成单位
收录类别SCI
关键词Galaxies: Active Galaxies: Individual (Iii Zw 2) Galaxies: Jets Galaxies: Seyfert
摘要We 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.
项目资助者National Natural Science Foundation of China [10878013] ; Natural Science Foundation of Yunnan Province [2006A0049M, 2007A230M]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1384-1076
URL查看原文
WOS记录号WOS:000271732000008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SUPERMASSIVE 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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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7048
专题星系研究组
通讯作者Li, HZ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
作者单位1.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
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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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