Fig. 4
Top panel: near-IR spectrum of HBC 722 obtained with WHT/LIRIS on 2011 July 21. To guide the eye, the vertical red bars show the laboratory wavelengths of atomic and molecular features typical for young stars. Bottom panel: optical spectra of HBC 722 obtained with GTC/OSIRIS on 2012 April 17 (blue curve) and 2013 July 10 (black curve). The inset shows the Hα line in more details as a function of the velocity. The identified lines are marked in red above the optical spectra.
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