Fig. 7

Ionisation fractions of oxygen, neon, magnesium, and iron ions as a function of the electron temperature for collisional ionisation equilibrium plasma (CIE, ism-model on the left panel) and as a function of the ionisation parameter for a gas in photoionisation equilibrium (PIE, photo-model, on the right panel). The vertical dashed lines indicate the best values for kB T and ξ (observation008411) obtained through the Bayesian analysis.
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