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Fig. A.3

Abundance of H (brown long dashed line), electrons (red solid line), CO (yellow dotted lines), C (green dash-dotted line), C+ (blue short dotted line), and H+ (purple short and long dashed line) for times of 300 yr (circle), 1000 yr (triangle), 104 yr (pentagon), and 108 yr (diamond) as a function of the visual extinction.
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