Fig. 17

Temporal evolution of the source terms governing the thermal energy of the corona (dashed lines) and ηj2 (solid lines) above the transition region for two uniform values of the critical switch-on thresholds corresponding to C = 2.4 × 10-4 (blue lines) and C = 2.4 × 10-6 (magenta lines) based on a coronal temperature of T = 106 K. For comparison, the reference case with a local coronal temperature dependent threshold value corresponding to C = 3.7 × 10-3 (green lines) is also shown.
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