Monday 21 September 2020

general relativity - Rotating black holes and naked singularity


In the book The science of interstellar by Kip thorne can be found the following:



There is a maximum spin rate that any black hole can have. If it spins faster than that maximum, its horizon disappears, leaving the singularity inside it wide open for all the universe to see; that is, making it naked.



Can someone explain to me why and how a black hole spinning that fast would have its horizon disappear?





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