Fig. 2
Near-infrared spectra of ESO-Hα-558 and ESO-Hα-566 obtained with NACO, clearly showing the differences in the shapes of their spectral energy due to the later spectral type of ESO-Hα-566. The “triangular” shape of the spectrum in the H band, with a distinct change of slope near 1.7 μm, is characteristic of cool young objects with low surface gravity.
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