Models of young brown dwarfs and giant planets

Young stars are a logical 'lamp post' around which to search for young, bright extrasolar planets. The coolest, least massive, and perhaps most interesting of such objects, however, may appear differently than predicted by models. A variety of processes, including cloud formation and transport of non-equilibrium species, can affect the emergent spectrum of an extrasolar giant planet or brown dwarf. Here I briefly review a few such processes that might alter the emergent flux predicted by existing models.