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This answer is part of my answer in another related question. Since it addressed this question too, I put it here, perhaps you find it helpful. No. There does not exist any confirmed observational evidence for realistic black holes in support of Hawking radiation. A straightforward calculation for the Hawking radiation of static (Schwarzschild) black holes ...

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Unless everything we know about general relativity and quantum field theory is wrong, Hawking radiation almost certainly exists. It is also entirely undetectable. The thermal output of a 3 solar mass black hole by way of Hawking radiation amounts to $\sim 10^{-29}$ W. This, of course, is not only completely undetectable but the corresponding Hawking ...

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How do we know Hawking radiation exists? Quantum Physics (Quantum Field Theory) and General Relativity are considered as the two main theories in physics, which can explain a broad range of phenomena at the scale of atoms and subatomic particles to the large scales of the universe, beyond the ability/validity of classical, nonrelativistic physics. They also ...

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