Top: simulated light curves for LSST filters before time sampling. Black curve is a DRW using τ = 200 days and SFinf = 2 as a centrally-driven source. Transfer functions shown on the top panel of Fig. 1 are applied to simulate distorted (skewed) multi-band light curves. Middle: curves are shifted back by their mean delay, ⟨δt⟩λ, showing that there are residual misalignments due to convolution by skewed kernel that may bias delay measurements toward the peak of asymmetric delay distribution rather than its mean. Bottom: example of simulated data as may be obtained with LSST g, r, and y bands. We simulate the light curves over a period of 1000 days with a one-day cadence. The error bars are all Δm = 0.01 mag rms. The color code is the same as in Fig. 1.
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