HCOOCH₃, CH₃CN (k = 2), and C¹⁸O(2−1) velocity (1st) moment maps overlaid with the SMA 1.3 mm dust continuum of S255IR. The contours start at 5σ and increase in steps of 10σ in all panels (σ = 1.7 mJy beam^-1). The lines in each panel show the pv-diagram cut presented in Fig. 14. All moment maps were clipped at the five sigma level of the respective line channel map. The synthesized beam is shown in the bottom left corner of each plot. The (0, 0) point in each panel is RA 06^h12^m54.019^s Dec  + 17°59′23.10′′ (J2000.0).