The intensity ratio variation of the Si IV 1394/1403 Å lines during solar flares - Resonance scattering and opacity effects

Open Access

Fig. 9.

Normalized difference of the contribution functions (ΔC) at 8.0 s in Case f10E25d3 (background). The intensity ratio profile is marked as the black line. The red line denotes the τ = 1 height and the orange line refers to the proportion of resonance scattering to thermal emission (X).

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