Plasmoid detachment from the Y point. Left panel: distance between the Y point and the footpoint of the separatrix, d_Y, as a function of time for different BH spin values. The origin of time is arbitrary, but over these time lapses the simulations have reached a numerically relaxed state. Right panel: estimates of the time periodicity of the motion of the Y point, τ_Y, as a function of the BH spin.