Brown dwarfs in the Pleiades cluster. II. J, H and K photometry.
We have obtained near-infrared observations of some of the faintest objects so far known towards the Pleiades young stellar cluster, with the purpose of investigating the sequence that connects cluster very low-mass stars with substellar objects. We find that infrared data combined with optical magnitudes are a useful tool to discriminate cluster
Zapatero Osorio, M. R. et al.
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1997