2D and 1D density plots of example posteriors. Top rows: marginal 1D density for the cINN posterior (gray histogram) and ground truth (dashed black line). Middle rows: 2D density of the cINN generated posterior (10⁴ samples per posterior). Bottom rows: contour plot of ground truth densities calculated over a parameter grid. Note that we use the same color maps in the second and third rows (although the colorbars show different ranges). The yellow markers indicate positions of cINN MAP estimates (triangle) and PHANGS MLEs (cross).

Continued.