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Periodicity analysis of the radio curve of PKS 1510-089 and implications for its central structure
Xie GZ(谢光中)1,2; Yi, TF2; Li, HZ3; Zhou, SB2; Chen, LE3; Xie, GZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTRONOMICAL JOURNAL
2008-06
Volume135Issue:6Pages:2212-2216
DOI10.1088/0004-6256/135/6/2212
Contribution Rank第1完成单位
Indexed BySCI
KeywordGalaxies : Individual (Pks 1510-089) Galaxies : Jets Galaxies : Nuclei Radio Continuum : Galaxies
AbstractWe have analyzed the radio light curves of PKS 1510-089 at 37 and 22 GHz from 1990 to 2005 taken from the database of the Metsahovi Radio Observatory, and find evidence of quasi-periodic outbursts. The light curves show great activity with very complicated non-sinusoidal variations. Using Jurkervich's method, the power spectrum method, and the discrete autocorrelation function to analyze these data, we have found two periods of p(1) = 0.92 +/- 0.04 yr and p(2) = 1.82 +/- 0.12 yr for the outbursts in PKS 1510-089. It is interesting to note that the results for two frequencies and three methods are almost the same and p(2) approximate to 2p(1). In addition, these results are in good agreement with the periodic deep flux minima of 1.84 +/- 0.1 yr ( half period similar to 0.92 +/- 0.03 yr) observed by us and other authors in the optical band in 2002, 2004, and 2005.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6256
URL查看原文
Archive Date2008-05-22
WOS IDWOS:000256453700022
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordBINARY BLACK-HOLE ; RAY-LOUD BLAZARS ; ACTIVE GALACTIC NUCLEI ; BL LACERTAE OBJECTS ; GAMMA-RAY ; LIGHT-CURVE ; EXTRAGALACTIC SOURCES ; PKS 1510-089 ; VARIABILITY ; OJ-287
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Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7038
Collection星系研究组
Corresponding AuthorXie, GZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
2.Physics Department, Yunnan University, Kunming 650091, China
3.Department of Physics, Yuxi Normal College, Yuxi 653100, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xie GZ,Yi, TF,Li, HZ,et al. Periodicity analysis of the radio curve of PKS 1510-089 and implications for its central structure[J]. ASTRONOMICAL JOURNAL,2008,135(6):2212-2216.
APA Xie GZ,Yi, TF,Li, HZ,Zhou, SB,Chen, LE,&Xie, GZ .(2008).Periodicity analysis of the radio curve of PKS 1510-089 and implications for its central structure.ASTRONOMICAL JOURNAL,135(6),2212-2216.
MLA Xie GZ,et al."Periodicity analysis of the radio curve of PKS 1510-089 and implications for its central structure".ASTRONOMICAL JOURNAL 135.6(2008):2212-2216.
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