B 213 molecular hydrogen column density maps as derived by Palmeirim et al. (2013), reconstructed at an angular resolution of 18.2″. A general view of the region is shown in the top-right panel, and main regions of interest are enlarged. Contours are (3, 6, 9, 12, 15, 20, and 25) × 10²¹ cm⁻². Positions observed by GEMS with the 30 m telescope are indicated with white triangles. Red circles represent the position of the starless cores. Labels in red indicate the cut IDs. See Table 1 for further details.