Data from regular radio astronomical observations (2007-2015) at the Saravand scientific test station of the Institute of Radio Physics and Electronics, National Academy of Sciences of the Republic of Armenia, are used to discuss the yearly average variation in the intensity of the radio emission from the radio source Cassiopeia-A and the reliability of the periodicity in the variation of the radio flux. It is shown that during this period the intensity of the radio emission from Cassiopeia-A decreased at a yearly average rate of 0.55%, but data on the yearly averages for 2007-2015 indicate a curve with a short (about 2.7-3 years) period.
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Translated from Astrofizika, Vol. 60, No. 1, pp. 97-103 (February 2017).
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Martirosyan, R.M., Gulyan, A.G., Pirumyan, G.A. et al. Variation in the Flux Density of the Radio Source Cassiopeia-A During the Period 2007-2015. Astrophysics 60, 83–89 (2017). https://doi.org/10.1007/s10511-017-9464-y
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DOI: https://doi.org/10.1007/s10511-017-9464-y