Fig. 5
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Part of the X-shooter stacked spectrum centered at the Ca II triplet. The spectra show broad photospheric profiles, and the PMS stars with gaseous disks include double-peaked emission features. The spikes are residuals from the nebular emission subtraction. Note the Ca II triplet (blue labels) and O I (blue label) emission in the Paschen series (green labels) lines. The Ca II triplet blends with Pa-13, Pa-15 and Pa-16.
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