Fig. 4: Validation on synthetic observations of time-variable sources.
From: Variable structures in M87* from space, time and frequency resolved interferometry
In the figure, time goes from left to right, showing slices through the image cube for the first time bin of each day. Different source models are shown from top to bottom: eht-crescent, slim-crescent and double-sources. For each source the ground truth, the approximate posterior mean of the reconstruction and the relative s.d., clipped to the interval [0, 1], are displayed (from top to bottom). The central three columns show moments in time for which no data are available since data were taken only during the first and last 2 d of the week-long observation period.
