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RE: Is Matter In Black Hole Very Cold?

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Posted by shavenyak on June 27, 2000 20:47:15 UTC

I don`t think "temperature" really has any meaning for a black hole singularity. After all, temperature is really the motion of particles of a substance in relation to one another. In a singularity, there aren`t really any particles, just one lump of mass. There is also no motion, since the mass is compressed into a single point.

As the black hole collapses, I think it is safe to say its temperature would increase as the pressure increased and volume decreased. But once it shrinks to the size where quantum mechanics govern it behavior rather than conventional physics, all bets are off.

Anyway, the only way the temperature of an object has any effect on anything is by the radiation it emits or by contact with other objects. The black hole singularity emits no radiation and any object which comes into contact with the singularity will become part of it, so it`s really a bit meaningless to talk about the temperature of the singularity.

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