Very interesting.
http://phys.org/news/2016-05-stellar-cannibalism-star-brown-dwarf.html#jCp
http://phys.org/news/2016-05-stellar-cannibalism-star-brown-dwarf.html#jCp
Most brown dwarfs are 'failed stars', objects that were born with too little mass to shine brightly by fusing hydrogen in their cores. By contrast, the brown dwarf in this system was born as a full-fledged star, but has been stripped to its current mass by billions of years of stellar cannibalism.