Isolated black holes (BHs) don't emit gravity waves. A pair of BHs (binary BHs) do in the final stages of coalescence (merger). Some supermassive black holes found in the centers of galaxies are actually a binary pair of SMBH. It takes a Hubble scale length of time (billions of years) before these two massive objects get really close to each other. Then within seconds the pair merge, releasing gravitational waves.
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Feel free to reply to any comment by clicking the "Reply" button.res ipsa loquitur
magicwatch
Level 7
Sep 18, 2018
0
@TheAstroChuck Leonardo considered English la lingua pura because, "It was beyond the corrupting forces of the Vatican". so now this is the opposite ,
good to hear your comments, though sometimes think it is pearls before swine
magicwatch
Level 7
Sep 18, 2018
0
How can they not be emitting gravity waves when they are pulling in stars and the pair of BHs eventually merge? Sounds like gravity!
dare2dream
Level 7
Sep 18, 2018
0
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