Filament criticality in SDC13 overlaid on the JCMT 850 μm continuum map. The color of the squares is the estimated local filament criticality, considering the support from the thermal and nonthermal energy. The white diamonds and stars label the starless and protostellar sources identified in Peretto et al. (2014). The filaments are in most locations supercritical, with only a few subcritical locations typically at the tips of the filaments in the outer diffuse zones. If considering the support from magnetic fields, the filament criticality can change within a range from ±5%, depending on the magnetic field geometry.