06-04-2014, 10:49 AM
Actually, I'm somewhat leery of binary planets existing where one or both is tidally-locked to its primary (in the case of the red dwarf configuration described in the article) because of the low values of planetary angular momentum. IMO, the planets would, as their rotation slowed, move farther from their co-orbiting partner until they escaped beyond their partner's Hill sphere radius.
Radtech497
Radtech497
"I'd much rather see you on my side, than scattered into... atoms." Ming the Merciless, Ruler of the Universe