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Fig. 4


Magnitude-color diagrams with the T Cha companion candidate. Left: the solid lines show NextGEN models for 5, 7, and 10 Myr, while the shaded area represents the Ks − L′ limit. We provide masses (in MJup) for an age of 7 Myr. Right: the solid lines correspond to the NextGEN (blue) and DUSTY (black) models for 5, 7, and 10 Myr, and the masses are derived for an age of 7 Myr. The shaded area shows the possible location of the companion candidate, according to the derived MKs and Ks − L′ limits.

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