Description
Brown dwarfs are objects occupying the gap between the least massive
stars and the most massive planets. They are intrinsically faint
objects so their detection is not straighforward and, in fact, was
almost impossible until the advent of global surveys at deep optical
and near-infrared bands like SDSS, 2MASS or DENIS among others. We
propose here to mine the 2MASS-PSC and SDSS-DR9 databases to identify
T-type brown dwarfs through an appropriate combination of colours in
the optical and the infra-red, an approach that perfectly fits into
the Virtual Observatory.
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