Testing the X-ray variability of active galactic nuclei with the non-linear prediction method

Czerny, Bozena; Lehto, Harry J.

Poland

Abstract

The analysis of eight EXOSAT X-ray light curves of six active galactic nuclei by non-linear prediction methods indicates that the observed variability is truly stochastic and is not caused by deterministic chaos. This result favours X-ray emission models with multiple centres of production of hot, possibly relativistic, electrons.

1997 Monthly Notices of the Royal Astronomical Society
Exosat 22