Disc size estimates R₂₅₀₀. Shown are the probability distributions for the accretion disc size of HE0435-1223 from our simulations using the Gaussian disc model with the R band data (in red) and with the V band data (in blue), as well as the thin disc model with R (in orange) and with V (in green). The corresponding data points (in colour), with error bars, show the size expectation values with 1σ intervals. Similarly, the black data point shows the microlensing size result of HE0435-1223 found by Morgan et al. (2010). Note that the position of the data points along the ordinate is arbitrary.