SMA 1.3 mm continuum data overlayed on Herschel Hi-GAL images (Jy/beam) at 350 μm (top left), 250 μm (top right), 160 μm (bottom left) and 70 μm (bottom right). The contours indicate the SMA 1.3 mm continuum at 3, 5, 7 and 9 mJy/beam. Letters A and C indicate 2 of the 4 sub-fragments seen in the region which coincide with MM1. The two sources, Her1 and Her2, indicated in blue, were extracted from the 70 μm Herschel data using the Hyper algorithm (Traficante et al. 2015, see Table 3).