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Since most stars rotate and since the black holes so far observed appear to have resulted from the collapse of stars, I'm wondering whether the black hole radiation hypothesized by Hawking is expected to propagate into their otherwise empty centers, or only outward through their event horizons.

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    $\begingroup$ This article details the process: en.wikipedia.org/wiki/Hawking_radiation. It points out that pair production occurs on the "safe" side of the event horizon, not inside it. $\endgroup$
    – user146020
    Mar 27 '17 at 18:08
  • $\begingroup$ As I've accepted Anna's answer, I won't be posting a new one, but an answer more like the one I'd expected can be found in the next-to-last paragraph of the 2013 paper "Energy and momentum of the Universe", available free on Cornell U.'s Arxiv website. $\endgroup$
    – Edouard
    Jul 31 '20 at 18:27
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Here is a heuristic image of the feynman diagrams , heuristic because it misses the gravitational vertex that will supply the energy for the reality of the escaping particle. :

hawking radiation

As depicted one particle of the pari can escape, and the other enters the event horizon and is eaten up by the black hole. They are generated close to the event horizon.

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  • $\begingroup$ The separated particles remain entangled with each other. $\endgroup$
    – Edouard
    Mar 12 '19 at 1:41
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    $\begingroup$ @Edouard until they interact with another particle on their way, yes $\endgroup$
    – anna v
    Mar 12 '19 at 4:14
  • $\begingroup$ I've already accepted this good answer as to how HR might work, if it exists, but, rather than leave an impression that I'm convinced of its existence, I have to suggest that anyone curious about the possibility that it might should look at a 2019 alternative, shown at arxiv.org/pdf/1910.10819.pdf , which proposes that it might not exist, at least in the usual sense of radiation as propagating OUTWARD from an origin. $\endgroup$
    – Edouard
    Feb 18 '20 at 19:34
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    $\begingroup$ @Edouard I live in Greece and need my 8 hours . Also I am not into multiverses or tachyons, which do go backward $\endgroup$
    – anna v
    Feb 22 '20 at 5:39
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    $\begingroup$ Anyway my answer two years ago was not given in the context of multiverses, it is a simplified intuitive plot I found that helped me guess at the mathematics of hawking radiation. $\endgroup$
    – anna v
    Feb 22 '20 at 5:45

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