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970858.fig.003b
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970858.fig.003c
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Figure 3: Comparison of two recently estimated BHMFs, calculated by Shankar et al. [64] (red dashed line) with that calculated by Cao [92] (solid black line). Both BHMFs were estimated by assuming a quasar lightcurve, where Shankar et al. [64] used a step function model while Cao [92] assumed a power-law decay. Despite the two different models, the BHMFs are similar at a variety of redshifts, except at possibly the high-mass end.