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Fig. 19


Regimes of Mg I] λ4571 line formation in the [xMgI, T] plane. The values as a function of time for models 13C (blue crosses) and 13E (red circles) are also shown. The proximity to the dividing line between the two regimes means that both recombination and collisional excitation may contribute to the Mg I] λ4571 luminosity.

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