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View Full Version : Black Holes Seen Spinning at the Limits Predicted by Einstein



Fraser
2008-Jan-10, 10:40 PM
The supermassive black holes that lurk at the hearts of the most massive galaxies might be spinning faster than astronomers ever thought. In fact, they might be spinning at the very limits predicted by Einstein's theory of relativity. Perhaps it's this extreme rotational speed that generates the energetic jets that blast out of the most [...]

More... (http://feeds.feedburner.com/~r/universetoday/pYdq/~3/214613340/)

Trakar
2008-Jan-11, 04:02 PM
The supermassive black holes that lurk at the hearts of the most massive galaxies might be spinning faster than astronomers ever thought. In fact, they might be spinning at the very limits predicted by Einstein's theory of relativity. Perhaps it's this extreme rotational speed that generates the energetic jets that blast out of the most [...]

More... (http://feeds.feedburner.com/~r/universetoday/pYdq/~3/214613340/)

So what would happen if a black hole reached the limit? I'm guessing that its c and so it never actually reaches the limit it just incrementally keeps increasing towards that limit. Angular momentum has to be conserved. It would seem that they would become quite bizarre creatures as their spin gets very close to c. Rings? temporal effects?

Bogie
2008-Jan-11, 04:58 PM
Local spacetime would be affected but distant space time would not. Wouldn't you say that if the black hole reached the maximum limit that the local effect would be create a new boundary but the effect would dissipate quickly and just be an observational phenomenon, like what was reported in the article?