VLA1623 in continuum. Top left: ALMA 1.3 mm continnum, three components are observed: VLA1623A, B, and W. While B and W are observed to be compact, A shows an extended and flattened component. The inset shows a zoom-in of VLA1623A and B (black contours), overlaid with intensity-integrated C¹⁸O (2−1) (halftone). Contours are in steps of 3σ, 5σ, 10σ, 15σ, 20σ, 40σ, 60σ, and 78σ, with σ = 1 mJy beam^-1. Top right: VLA1623A’s SED; the orange point indicates VLA1623A’s integrated continuum flux obtained from our ALMA observations. The solid line is the best fit of a single-temperature graybody fit, and the resulting parameters are indicated in the figure. Flux uncertainties are usually smaller than the plot symbols. Bottom left: ALMA 1.3 mm continuum contours overlaid on Spitzer MIPS1. Contours are the same as in the top left panel. Red and blue arrows indicate the red- and blue-shifted large-scale outflow direction. Bottom right: ALMA 1.3 mm continuum contours overlaid on Spitzer IRAC4. Contours are the same as in the top left panel. The dashed circle indicates the field of view of the ALMA observations.