Continuum at 850 μm (contours) for both systems; IRAS 16293−2422 (left panel) and VLA 1623−2417 (right panel), overlaid on intensity integrated H2CO (0–60 km s−1; color scale) and redshifted CO (4–15 km s−1; color scale), respectively. The green ellipses on the bottom left panel indicate the beam of the observations. For the right panel, the empty ellipse is the beam of the CO observations. For VLA 1623−2417, contours are in steps of 3, 8, 15, 20, and 50σ, with σ = 0.004 Jy beam−1. For IRAS 16293−2422, the levels arelogarithmically spaced between 0.02 and 2 Jy beam−1, and highlight the ridge that spans between sources A and B. The arrows indicate the direction of red- and blue-shifted outflows from source A in each system.
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