Fig. 1
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Correlated flux densities in Jansky (Jy) and visibility phases in degrees (deg) with standard deviation error bands computed from 1000 bootstrapping realization of the 2017 April 11 M87* (left panels) and April 7 Sgr A* (right panels) observational EHT data. The measurements are plotted as a function of baseline length in units of the λ1.3 mm observing wavelength. The displayed Stokes parameters show the total intensity (I), linear polarization (Q&U), and circular polarization\ (V).
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