Peak temperature T_peak maps of the NOEMA and 30m telescope observations. The black symbols represent YSOs in the region, summarized in Table 2: stars mark the positions of Class 0, I, and 0/I protostars, circles represent flat-spectrum objects, and diamonds mark Class II sources. The protostars are labeled following Table 2. Left: N₂H⁺ J = 1 − 0, F₁F = 01 − 12 T_peak. Right: HC₃N J = 10 − 9 T_peak.