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Variability Study of the S5 Sample
Liu, Jun1,2,3; Cui, Lang1,2; Liu, Xiang1,2; Ding, Zhen1,2; Song, Hua-Gang1,2
AbstractWe present the results of flux density monitoring of the S5 sample at 5GHz with the Urumqi 25-m radio telescope during Dec. 2008 and Nov. 2009. Most sources exhibited >2% rms variation in our one-year monitoring. Twenty-five highly variable sources were detected at a confidence level of 99%. Weaker sources show larger amplitude of variability. Sources that have a steep spectral index are not as variable in flux density as the flat spectrum objects. No galactic dependent variability was found. Supplemental IDV observations for several strong variables were performed in order to search for possible rapid variability, and to compare variability on different time-scales. The absence of short time-scale variability in S5 0633+73 indicates that mid time-scale variability is a main source of intrinsic origin.
KeywordGalaxies: Active Quasars: General Radio Continuum: Galaxies
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000350481700011
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jun,Cui, Lang,Liu, Xiang,et al. Variability Study of the S5 Sample[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2014,35(3):247-251.
APA Liu, Jun,Cui, Lang,Liu, Xiang,Ding, Zhen,&Song, Hua-Gang.(2014).Variability Study of the S5 Sample.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,35(3),247-251.
MLA Liu, Jun,et al."Variability Study of the S5 Sample".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 35.3(2014):247-251.
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