Kinematic phase diagrams at t = 0.5 Myr in simulations L0.5 (left), L1.0 (middle), and L2.0 (right). In each panel, the top 2D histogram shows radial velocity against density, and the bottom the radial velocity against temperature. 1D histograms at the top and right show distributions of individual gas properties. Grey contours show corresponding distributions in the control simulation. Vertical dotted lines show v_r = 0 and v_r = −σ_b; horizontal dotted line shows T = 3 × 10⁴ K.