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Fig. 2

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Evolutionary tracks in the Teff-log   (g) space for ultra-cool dwarfs according to the BT-Settl library. Each line corresponds to a different mass in the range 0.0005–1.4 M as labelled below selected tracks. Filled circles represent individual models in the grid. These are coloured according to the decimal logarithm of the age in Gigayears as indicated by the colour scale on the right. Effective temperatures are measured in Kelvin and gravities in cm s-2.

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