χ2 surfaces for the fit of the radio spectral energy distribution of the A (left) and B (right) components. The synchrotron constant is defined as FNT ≡ SNT(1.5 GHz)/1.5−αNT, where SNT(1.5 GHz) is the synchrotron flux at 1.5 GHz and αNT is the non-thermal spectral index.
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