a) Observed APEX 870 μm map; b) APEX+Planck combined map; c) modeled 870 μm map by inverting from the high-resolution column density map. In all panels, the color bars are identical, going from 0.15 to 5.0 Jy beam^-1 in logarithmic scale. The purple contours show levels of 0.25, 0.40, 0.60, 0.80, 1.20, 1.60, and 2.0 Jy beam^-1. It is noteworthy that the sensitivity of the observed 870 μm map is 0.05−0.07 Jy beam^-1. A beam size of is shown on the bottom left (full red circle). Eight condensations are roughly depicted in ellipses and labeled as given in ZA06.