Gas kinematic properties as a function of declinationalong both OMC-1 (blue) and OMC-2 (red) regions. from left to right: (1) integrated N₂ H⁺ (1-0) emission. Symbols are similar to those in Fig. 2; (2) centroid velocities and (3) linewidths for all the N₂ H⁺ (1-0) components detected in our ALMA observations with S∕N ≥ 3; (4) NH₃ -derived gas kinetic temperatures (Friesen et al. 2017) at the position of our N₂ H⁺ measurements. For reference, the declination of the Trapezium stars (black), the Orion BN/KL region (yellow), and FIR sources (green) are indicated in all subplots.