Abstract

MERCADO, A.  and  CARRASCO, L.. Application of non-linear analysis to variability of 3C390.3. Rev. mex. astron. astrofis [online]. 2005, vol.41, n.2, pp.477-482. ISSN 0185-1101.

In this paper, we apply non-linear data analysis methods to the light curve of 3C390.3 in order to investigate its complex time-evolution behavior and distinguish it from simple linear models. We applied advanced statistical tests to the time series and to linear and non-linear mathematical models, in order to have a comparison reference. The different tests applied systematically reject the hypothesis of a linear generating mechanism for any part of the time series, implying that the light curve of 3C390.3 has indeed a non-linear nature.

Keywords : Methods [Data analysis]; Methods [Statistical]; Quasars [Individual (3C390.3)].