Periodicity analysis of the radio light curve of the Seyfert galaxy III Zw 2

	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, TF 1; Tang, YK4 ; Bao, YY 2; Lu, LZ 5; Na, WW 2; Ren, JY 2
刊名	NEW ASTRONOMY
	2010-02
卷号	15 期号:2 页码:254-259
关键词	Galaxies: active Galaxies: individual (III Zw 2) Galaxies: jets Galaxies: Seyfert
ISSN号	1384-1076
通讯作者	Li, HZ (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
产权排序	第三完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	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
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/article/pii/S138410760900102X
语种	英语
WOS记录号	WOS:000271732000008
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/7048]
专题	云南天文台_星系研究组
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
推荐引用方式 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.,...&Ren, JY.(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.