Fig. 7
Colors as a function of spectral type for the objects discussed here. The best fit for each color and the 3σ confidence intervals are shown with a solid line and a shaded region. The solid purple and cyan lines are the J−H and H−K photospheric colors for pre-main sequence stars by Luhman et al. (2003), while the dashed lines are the same colors for 5−30 Myr-old pre-main sequence stars by Pecaut & Mamajek (2013).
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