Fig. C.1
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Examples of β Pic spectra in Fe II lines near 2750 Å, rising from a4D metastable term. The lines are at 2737 Å (top left, El = 8680 cm−1), 2740 Å (top right, El = 7955 cm−1), 2747.8 Å (bottom left, El = 8392 cm−1) and 2756 Å (bottom right, El = 7955 cm−1). The blue lines emphasise the location of the lines in the β Pic rest frame (thus at 0 km/s).
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