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Paper: S5 0716+71 from 1994 to 2001: Optical and Radio Variability
Volume: 299, High Energy Blazar Astronomy
Page: 225
Authors: Raiteri, C.M.; Villata, M.; Lanteri, L.; Ostorero, L.; Tosti, G.; Ciprini, S.; Nucciarelli, G.; Nesci, R.; Massaro, E.; Maesano, M.; Montagni, F.; Papadakis, I.E.; Kurtanidze, O.M.; Nikolashvili, M.G.; Ibrahimov, M.A.; Aller, M.F.; Aller, H.D.; Terasranta, H.
Abstract: The radio and optical behaviour of the BL Lacertae object 0716+714 from 1994 to 2001 has been investigated by a wide international collaboration including eight optical telescopes in Italy, Greece, Georgia (FSU), and Uzbekistan and two radio antennas in USA and in Finland. The optical light curves show a long-term trend on which fast variations are superposed. The mean brightness level seems to vary with a typical time scale of about 3.3 years. No clear evidence of correlation between variations in the optical and radio bands has been found.
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