Bottom: combined 1D optical spectrum of 2M0418+21 taken with the R2500R grating on GTC/OSIRIS on 19 December 2015. No smoothing was applied. Top: final combined 2D image of the R2500R spectrum of 2M0418+21. The white dot on the left-hand side corresponds to the Hα emission. The faint continuum is barely seen, but is present.
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