■ [blazar] AO 0235+164 : Fermi and our data
The figure shows the light curves of AO 0235+164 in GeV gamma-ray region and V band. These light curves in both gamma-ray and optical regions are variable by a factor of four and sixteen. The optical variation is, hence, larger than the gamma-ray one. The gamma-ray and optical light curves seem not to show a clear positive correlation.