Observed a) and modelled b), c) spatial distribution in the Hyades. Blue points are for stars with masses m > 0.5   m_⊙, red points for m ≤ 0.5   m_⊙. In the modelled distribution, the dynamically unbound particles are marked by black crosses b) or black points c). Two large black circles in a) and b) indicate the distances r_c from the cluster centre of 9 pc and 18 pc, whereas in c) the circles correspond to r_c = 9 pc, r_c = 18 pc, and r_c = 30 pc. The last one restricts the area considered in this study.