ANALYSIS OF THE VARIABILITY AND THE SPECTRUM OF PERIODS OF EXTRAGALACTIC SOURCE OJ 287 IN THE RADIO WAVES

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dc.contributor.authorDonskykh, A.
dc.contributor.authorRyabov, Myhaylo I.
dc.contributor.authorSukharev, A. L.
dc.contributor.authorAller, M. F.
dc.contributor.authorРябов, Михайло Іванович
dc.date.accessioned2014-03-29T02:36:46Z
dc.date.available2014-03-29T02:36:46Z
dc.date.issued2013
dc.descriptionOdessa Astronomical publications / Одесская астроном. обсерватория . – Одесса : Астропринт, 2013 . – Vol.26/2uk
dc.description.abstractWe analyzed long-term monitoring of data flux of extragalactic source OJ 287 obtained at frequencies of 14.5 GHz (1974-2011), 8 GHz (1971-2011), 4.8GHz and (1979-2010), on the RT-26, University of Michigan, USA. Variability of the flux of the radio source was investigated by applying wavelet analysis. There were identified long-period (in the range of 3.6 to 13.6 years) and short (in the range from 1.2 to 1.8 years) components at all studied frequencies and it was determined the time of their existence. The "spectra periods" for each year of observation were built to assess the contribution of individual periods in the formation of the most powerful phase of activity of the radio source. The dynamics of the manifestations of active periods at different frequencies was observed. The obtained data was compared with the results of MOJAVE VLBI monitoring for the period of 1995-2012 years at a frequency of 15.4 GHz. It allowed to investigate the structure of emissions during periods of manifestation activity maxima.uk
dc.identifier.citationOdessa Astronomical Publicationsuk
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/4792
dc.language.isoenuk
dc.publisherAstroprintuk
dc.relation.ispartofseries;vol. 26, issue 2, p. 240-242
dc.subjectlong-term monitoringuk
dc.subjectRT-26uk
dc.subjectextragalactic source OJ 287uk
dc.subjectactivity of the radio sourceuk
dc.subjectMOJAVE VLBI monitoringuk
dc.subjectactivity maximauk
dc.titleANALYSIS OF THE VARIABILITY AND THE SPECTRUM OF PERIODS OF EXTRAGALACTIC SOURCE OJ 287 IN THE RADIO WAVESuk
dc.typeArticleuk
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