Fig. 11.
Two-dimensional χ2 distribution plot in the Γj – T0 space, calculated for the brightness temperatures measured in the VLBI cores. The blank area shows the ranges of the parameter space disallowed by the observed distribution. The distribution of the χ2 values indicates a (Γj–T0) correlation, with 
, thus precluding a simultaneous fit for Γj and T0.
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