NOEMA 1.3 mm continuum emission of ISOSS J22478+6357 (left panel) and ISOSS J23053+5953 (right panel). The NOEMA continuum data are presented in color scale and pink contours. The dotted pink contour marks the − 5σ_cont level. Solid pink contour levels are 5, 10, 20, 40, and 80σ_cont. All mm cores identified in Beuther et al. (2021) are labeled in pink. The core outer radius r_out is indicated by a dashed blue circle. The synthesized beam is shown in the bottom left corner. A linear spatial scale of 0.1 pc is indicated by a black scale bar.