Multifrequency Observations of the Blazar PKS 0537-441 in a Moderately Active State
Maraschi, L.; Tanzi, E. G.; Chiappetti, L.; Bouchet, P.; Falomo, R.; Giommi, P.; Cristiani, S.; Treves, A.; Barr, P.
Italy, Germany, Chile
Abstract
PKS 0537-441 was observed during an active state in February 1985 at infrared, optical, UV, and X-ray frequencies. Comparison with earlier measurements indicates that the source brightened by a factor of approximately 2 in all bands. This suggests that the same spatial region may be responsible for the emission in the whole spectral range observed.