Fig. 3: Temporal evolution at selected locations.
From: Variable structures in M87* from space, time and frequency resolved interferometry

The brightness and flux for approximate posterior samples and their ensemble mean at specific sky locations and areas as indicated in the central panel. The peripheral panels show brightness and flux values of samples (thin lines) and their means (thick lines). Of these, the bottom right one displays the flux inside (red) and outside the circle (green), as well as the sum of the two (blue). For comparability, only brightness within the field of view of the EHT Collaboration image, indicated by the black box in the central plot, is integrated. The remaining panels give the local brightness for the different locations labelled by numbers in the central panel. The single-day results from EHT imaging are indicated as points with horizontal bars indicating the time interval over which the data were taken.