Name of the Speaker(s): Marchenko S.G., Hagen-Thorn V.A.,Takalo L.O., Sallanpaa A., Pursimo T.
Institution:
Title of the communication: THE VARIABLE SOURCES RESPONSIBLE FOR THE PHOTOMETRIC BEHAVIOUR OF OJ~287 IN THE IR-OPTICAL-UV REGION DURING 1994-1995.
Preliminary abstract (12 lines max.):
The investigations of multicolour observations of OJ~287 in the IR-optical- UV region in the frame of OJ-94 project were carried out. The colour indexes of variable source responsible for the outburst 1994-1995 have been obtained. The relative spectral energy distribution of the variable source in the IR-optical-UV region has been found. The comporison of colour indexes of variable sources responsible for the outbursts 1971-1972, 1983-1984, 1994-1995 is shown that there is a good correlation between amplitude of outburst and colour indexes of variable sources.