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Black Hole Binary

(BHB, BBH, Binary Black Hole)
(two black holes co-orbiting)

A Black Hole Binary (or BHB or Binary Black Hole or BBH) is two Black Holes co-orbiting. They could be the remnants of Binary Stars, or could be two Supermassive Black Holes from a Galaxy Merger. A source of detectable Gravitational Waves is a Binary Black Hole whose orbit has decayed until they merged.


(astrophysics,gravity)
http://en.wikipedia.org/wiki/Binary_black_hole

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