Fig. 1
Spectra at a resolution of 60 around the CH4 band at 1.625 μm. Field dwarfs are from the SpeX Prism library. A peculiar red dwarf from Stephens et al. (2009) as well as young companions, free-floating planets, and Jupiter are plotted in color. They have been normalized to their highest values. The absorption bands of water and methane are labeled. The transmission of the SDI + filters (T1, T2, T3) is plotted in the bottom panel.
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