Fig. 2: Brightness distribution on the first day.
From: Variable structures in M87* from space, time and frequency resolved interferometry
The top row shows the reconstructed mean and relative error. Note that the small-scale structure in regions with high uncertainty in the error map is an artifact of the limited number of samples. The bottom left shows a saturated plot of the approximate posterior mean, revealing the emission zones outside the ring. The bottom right shows the result of the eht-imaging pipeline in comparison, saturated to the same scale and with overplotted contour lines. The overplotted contour lines show brightness in multiplicative steps of 1/√2 and start at the maximum of the posterior mean of our reconstruction. The solid lines correspond to factors of powers of two from the maximum.
