D_n(4000) index (left panel), ages of stellar populations (middle panel), and star formation rates (right panel) for galaxies in A2142 vs. clustercentric distance. The upper panels show the distribution of clustercentric distances for galaxies with young and old stellar populations, and passive and actively star-forming galaxies (see legends in the panels). In the lower panels, the black line shows median values of parameters. Notations are as in Fig. 5, upper panel.