Primary-beam corrected PdBI/NOEMA 3 mm spectra of various sources embedded in the Slug and Jackpot nebulae (see their location in Fig. 1). The adopted channel width is 50 km s⁻¹. The dotted green histograms mark the 1-σ range. Pink and yellow shades highlight the channels used in the line maps in Fig. 1. The thick solid red lines show the fits for the three reported line emitters and two continuum emitters, as described in the text. All of the line detections are clearly associated with optical galactic counterparts.