Analysis of Quasar Radio Wave Flux Density Fluctuations and its Cosmological Meanings

Mathematics – Logic

Scientific paper

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Quasars, Radio Sources, Fluctuation Phenomena, Random Processes, Noise, And Brownian Motion

Scientific paper

The time series of microwave flux density variations (2.7 and 8.1 GHz) from 24 quasars was analyzed in the methods of power spectral index, Higuchi's fractal dimension, Hurst exponent, Correlation dimension and Kolmogorov entropy. The aim of study is to find cosmological meanings of analyzed results by mutually referring the indices varing with red shift of quasars. A systematic change was found among them, while yet unknown of discrimination between noise and dynamics of radio source systems.

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