Binned overlap reduction function. Blue is for DR2full while orange is for DR2new. The left panel shows violins of the posterior of the correlation coefficients averaged at ten bins of angular separations with 30 pulsar pairs each. The black line is the HD curve based on theoretical expectation of a GWB signal. The grey histogram is the arbitrarily normalised distribution of the number of pulsar pairs at different angular separations. The right panel is the corresponding 2D posterior for the amplitude and spectral index of the common correlated signal, showing 1σ, 2σ, and 3σ contours.