I'm wondering how close the companion mass is ... could the sum of the masses have prevented the brown dwarf from 'lighting up' due to the center of mass being too close to the outer region of the 'star'? The clue may be the 1 to 2 size ratio and a distance too close together.
One of the problems inherent in the extrasolar discoveries is that the bodies discerned in the data tend to be a great deal different than anything in our home system. The 200+ planets found so far tend to be larger than Jupiter, with a number a bit smaller than Jupiter, but larger than our other gas giants. Perhaps these kinda freaky systems being found are unrepresentative of everything that is actually out there, but it will be a while before we'll find out if that's true. Meanwhile:
http://www.freerepublic.com/focus/f-chat/1570230/posts?page=15#15
http://www.freerepublic.com/focus/f-news/1570726/posts?page=44#44
Possible Earth-like planet discovered
Houston Comical (AP) | June 13, 2005, 2:14PM
Posted on 06/13/2005 3:42:00 PM EDT by The_Victor
http://www.freerepublic.com/focus/f-news/1422069/posts
Researchers make sport of finding planets
Salt Lake Tribune | 15 Sept 2004 | Joseph B. Verrengia
Posted on 09/15/2004 1:18:07 PM EDT by balrog666
http://www.freerepublic.com/focus/f-news/1216830/posts
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=Gliese&btnG=Google+Search