Average time-lag measurement (left) and associated standard deviation (right) for various fractional flux contribution from the line fBLR, and six different amplitude of microlensing of the continuum μ. For each pair (fBLR, μ), 500 different quasar light curves have been generated, with a time lag τ = 100 days between the variation of the continuum and of the BLR. Note that due to the definition of fBLR, the case fBLR = 0.9 corresponds to an average contribution of the line of 0.9/1.9 = 0.47 to the total flux.
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