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Even though only a handful of sub-stellar companions have been found viadirect imaging, each of these discoveries has had a tremendous impact on ourunderstanding of the star formation process and the physics of coolatmospheres. Young stars are prime targets for direct imaging searches forplanets and brown dwarfs, due to the favorable brightness contrast expected atsuch ages and also because it is often possible to derive relatively good ageestimates for these primaries. Here we present the direct imaging discovery ofHD 284149 b, a 18-50 M_Jup companion at a projected separation of 400 AU from ayoung (25 Myr) F8 star, with which it shares common proper motion

A new sub-stellar companion around the young star HD 284149