Fig. 7
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ALMA-LMT-SMT and ALMA-SPT-SMA total intensity closure phase evolution of 120 s averaged Sgr A* data over the course of the 2017 EHT observing track on 7 April. Three synthetic data realizations of the variable MAD, a* = 0.5, Rhigh = 160, ilos = 30°, θPA = 0 model are shown next to the observational data. The error bars depict the a priori thermal noise estimations of the data.
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