September 8, 2010 7:27 AM Subscribe
Can a black hole unblackholeify itself when it 'sucks in' less dense matter?
posted by vckeating to science & nature (19 answers total)
I was wondering whether a black hole, in the process of attracting matter to itself, can experience ontological issues when this matter comes in 'contact' with the black hole, the idea being that it might lower the overall density of the whole thing to the point where the escape velocity becomes less than the speed of light.
Presumably this could only occur in small black holes, since I have some idea that matter drawn in gets eventually 'spit out,' but I'm not quite sure about the dynamics of this process.
It came up in a discussion over whether black holes ever 'go away,' as an alternative to Hawking radiation.