1.3 mm continuum emission toward the SVS13 region from NOEMA (left, rms ~20 mK) and ALMA (right) observations. In the left panel, the dashed circle shows the primary beam of the NOEMA observation and the dashed box represents the FoV in the right panel. The black plus signs represent the positions of VLA4A/B from Hsieh et al. (2019). The arrow in the top right corner indicates the shift (0″.13) of the self-calibrated ALMA image.