Fig. 3.
Four example fits to visibility amplitudes (upper panels) and closure phases (middle panels) of the EHT2017 synthetic data generated from frame 20 of the SANE model with a* = 0.5 and Rhigh = 80. Lower panels: model frames that were scaled and rotated by the best-fit values indicated in the upper panels, without (left) and with (right) blurring by a 20 μas Gaussian beam.
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