Velocity maps of CH₃OH and SiO towards OMC-2 FIR 4. Left panel: velocity maps (integrated between 9.9 and 12.9 km s⁻¹; colour scale in km s⁻¹) of CH₃OH (4_−2,3 − 3_−1,2 E) (left) and CH₃OH (5_1,4 − 4_1,3 A) (right). Right panel: velocity map (integrated between ~6.2 and 24.4 km s⁻¹; colour scale in km s⁻¹) of SiO(6−5). The different cores are depicted with magenta stars and are labelled in black. The positions of the SiO peaks from this study are depicted with filled magenta triangles. We draw four arrows from HOPS-370, one perpendicular to the disk, two towards the SiO peaks, and one similar to the direction of the jet in [OI] by González-García et al. (2016).