Fig. 4.

Top: Teff vs. age of isomasses from the BHCA95 models for masses of 10–80 MJup by steps of 1 MJup (black lines). The 51–59 MJup isomasses are highlighted with black dotted lines for a limited age range (400–1400 Myr). Bottom: Luminosity vs. age. 2M0418 is marked with a red line and the 1 and 2σ error bars shown as dashed lines.
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