Left: T_kin versus T_bol. The dashed line indicates T_kin = T_bol. Right: Δv_NT versus L_bol. The solid line indicates the least-squares fit to the data. The upper and lower dashed lines represent relationships found by 4 for NH₃ cores with and without cluster association, respectively. The dash-dotted line shows the relationships found by Myers et al. (1991) for IRAS point sources. Both plots are in log-log scales.