Fig. 4
Normalized SINFONI K-band spectrum of EX Lup in quiescence compared to the outburst. The position of the emission lines seen in the K-band spectrum taken during the outburst are marked (Kóspál et al. 2011). All the lines are seen in absorption rather than in emission. The CO overtone bandhead are also seen in absorption. The outburst spectrum is shifted in intensity.
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