Tidal radius determined by a cross-section between the cumulative radial mass distribution of the cluster and M(r) from Eq. (8) (blue line). The tidal radius for single stars (black) represents a minimal value, while a synthetic sample where all binaries have an equal mass (red) indicates the upper limit. The difference between these tidal radii is about 10%. The field distribution was added for comparison (purple and green for the actual and simulated field, respectively; see Sect. 2.4).