Fig. 2
Black: spectrum of CFBDS 1118 obtained with X-shooter at VLT. The regions with strong telluric H2O absorptions cannot be used and are blanked out. Red: T2 dwarf, SDSS J125453.9-012247 (McLean et al. 2007). A scaling factor is applied to normalize the median flux in the range 1.2–1.3 μm to unity. The upper panel shows the signal-to-noise ratio.
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