Spatial profiles of M-band continuum emission, coadded ¹²CO v = 1−0 line emission, and H₂ S(9) emission from four sources. The H₂ emission from these four sources is much more extended than the CO and continuum emission, and is reminiscent of H₂ v = 1−0 S(1) emission from outflows (Beck et al. 2008). The H₂ emission from Elias 29, L1551 IRS 5, IRS 63, and WL 6 is not extended and not shown here. The CO emission from GSS 30 shown here is the blueshifted component between −20 and −10 km s^-1. The CO emission on the line wings is not spatially extended beyond the continuum emission.