From top to bottom: current sheet filling factor (Δ = δ/πR_LC), plasma drift velocity (β_θ), dimensionless reconnection rate (), and electromagnetic energy flux toward the sheet (S′ = c|E′ × B′|/4π normalized by ) as function of radius in run R3_S250_K10. This analysis is done for each X-point (marked by a dot in these plots) along one spiral arm. The dashed line in the top panel is a linear fit to the numerical data of equation Δ(r) = Δ_LC(r/R_LC), where Δ_LC ≈ 0.003. The horizontal dashed line gives the average dimensionless reconnection rate .