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Multiple periodic oscillations in the radio light curves of NRAO 530
Xie MingJie1; Wang JunYi1; An Tao2,3; Zheng Lin1; Han Xu1; Wang,JY
2013-09-01
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
ISSN1674-7348
Volume56Issue:9Pages:1798-1805
AbstractIn this paper, the time series analysis method CLEANest is employed to search for characteristic periodicities in the radio light curves of the blazar NRAO 530 at 4.8, 8.0 and 14.5 GHz over a time baseline of three decades. Two prominent periodicities on time scales of 6.3 and 9.5 a are identified at all three frequencies, in agreement with previous results derived from different numerical techniques, confirming the multiplicity of the periodicities in NRAO 530. In addition to these two significant periods, there is also evidence of shorter-timescale periodicities of 5.0, 4.2, 3.4 and 2.8 a showing lower amplitude in the periodograms. The physical mechanisms responsible for the radio quasi-periodic oscillations and the multiplicity of the periods are discussed.
KeywordBlazar Nrao 530 Periodicity Variability Dcdft Cleanest
Subject AreaPhysics, Multidisciplinary
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11433-013-5287-y
WOS KeywordTIME-SERIES ANALYSIS ; ACTIVE GALACTIC NUCLEI ; UNEVENLY SPACED DATA ; DOUBLE HELIX ; VARIABILITY ; SPECTRUM ; JETS
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000323311000026
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10105
Collection期刊(老文献)
Corresponding AuthorWang,JY
Affiliation1.Guilin Univ Elect Technol, Key Lab Cognit Radio & Informat Proc, Minist Educ, Guilin 541004, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Xie MingJie,Wang JunYi,An Tao,et al. Multiple periodic oscillations in the radio light curves of NRAO 530[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(9):1798-1805.
APA Xie MingJie,Wang JunYi,An Tao,Zheng Lin,Han Xu,&Wang,JY.(2013).Multiple periodic oscillations in the radio light curves of NRAO 530.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(9),1798-1805.
MLA Xie MingJie,et al."Multiple periodic oscillations in the radio light curves of NRAO 530".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.9(2013):1798-1805.
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