1 Max-Planck-Institut für Extraterrestrische Physik, D-8046 Garching, Germany
2 Max-Planck-Institut für Astronomie, 6900, Heidelberg, Germany
3 Landessternwarte, 6900, Heidelberg, Germany
Abstract:
During two 14-day periods in January 1992 and March 1992, several AGN which have been in the wide field of view of COMPTEL and EGRET at that time were monitored optically for variations in intensity and polarization. We report on first results of this correlated optical and CGRO observations.