Fig. 1
H versus H − CH4on color–magnitude diagram corresponding to the S Ori 70 LIRIS field. The T-type S Ori objects are plotted as red circles. The presence of methane absorption at 1.6 μm induces blue LIRIS H − CH4on colors. Masses in units of Jupiter mass predicted for an age of 3 Myr and the cluster distance of 352 pc by Chabrier & Baraffe (2000) are labeled.
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