Fig. 5.
The ratio of Fe XXII 135.8 Å/Fe XX 121.8 Å (upper) and Fe XXIV 192.0 Å/Fe XXII 135.8 Å (bottom) as a function of temperature for the Maxwellian distribution (black full line) and different bi-Maxwellian distributions with p = 1/5 (blue dashed lines), 1/10 (green dashed lines), 1/20 (red dashed lines), and p = 5 (blue full lines), 10 (green full lines), and 20 (red full lines).
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