Fig. 7.
Radial surface density profile of NGC 2539; only stars with PRF ≥ 0.1 are taken into account. The symbols and lines are the same as those in figure 6. (Color online)
Radial surface density profile of NGC 2539; only stars with PRF ≥ 0.1 are taken into account. The symbols and lines are the same as those in figure 6. (Color online)
