Fig. 5
Line ratios of the same species using Kaufman & Neufeld (1996) C shock models (KN96, solid line) and Flower & Pineau des Forêts (2010) C and J shock models (F+PdF, dashed and dashed-dotted lines, respectively). Ratios are shown as a function of shock velocity and for pre-shock densities of 104 cm-3 (left), 105 cm-3 (center), and 106 cm-3 (right). Observed ratios are shown as blue rectangles.
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