Longitudinal separation distribution between hemispheric flares from Figure 4e for different waiting time intervals (panel a). The solid and dashed black lines are fits of Equation (3), with and without the Gaussian component respectively. The vertical dashed lines delimit the interval Δϕ ∈ [Δϕ₀ ± 2σ] from the Gaussian fit. We note the vertical logarithmic scale. Panel b shows the corresponding cumulative distribution function.