Upper panel: gas kinetic (T_K; red squares) and dust effective (T_eff; black triangles) temperatures as a function of the projected radius to the nearest IRAS source within NGC 1333. The plot combines all positions with derived T_K values in this work together with those surveyed by Rosolowsky et al. (2008). The bars indicate the 1σ errors of both gas and dust temperatures, respectively. The red open squares indicate positions with T_K> 20 K values (see text). The arrows indicate positions with T_K values listed as upper-limits by Rosolowsky et al. (2008). Lower panel: measured ammonia linewidths (ΔV) within the same positions.