The luminosity functions (LF) of the Hyades candidates and of field stars in the solar vicinity. a) Solid lines and symbols are the LFs of the Hyades at different distances from the cluster centre r_c, black filled circles for r_c < 9 pc, red open circles for 9 pc  < r_c < 18 pc, blue crosses for 18 pc  < r_c < 30 pc. The LF of nearby stars from the CNS4 (Jahreiß 2010, priv. comm.) is shown by the black dashed line whereas the black dotted line is the fraction of field stars with space velocities comparable to the velocity of the Hyades. b) The red open circles and blue crosses show the adopted contamination of the Hyades sample of 7.5% at 9 pc  < r_c < 18 pc and 30% at 18 pc  < r_c < 30 pc, respectively. The black dotted line is the same as in a).