Title: Optical Observations of Seyfert galaxies.
Author(s): I. E. Papadakis, I. Papamastorakis (Oral)
Contact: I. E. Papadakis, University of Crete, Greece
We present the results from monitoring observations of seven Seyfert
galaxies in May 2001 from Skinakas Observatory. The objects were
observed in the U,B,V and I bands. Our main aim is to determine the
basic variability characteristics of the sources (i.e. variability
amplitude, auto-covariance functions) and investigate possible
differences between the sources and the dependence of the variability
charactersitics on wavelength. We also investigate the cross-links
between the observed variations at different wavebands using
cros-correlation analysis techniques. We discuss the implications of our
results on the various mechanisms for the origin of optical variability
in Seyferts galaxies.