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My limited understanding is that the Hawking radiation is caused by virtual particle-antiparticle pairs spawning just outside the event horizon. The event horiz
by JabavuAdams 8y ago
My limited understanding is that the Hawking radiation is caused by virtual particle-antiparticle pairs spawning just outside the event horizon. The event horizon is by definition the surface on or inside of which not even light can escape. This seems to imply that outside the event horizon some non-zero mass objects can still escape, if they're on a favourable trajectory. E.g. aimed directly away from the event-horizon isosurface.
- SomeHacker44 8y agoMy layman's understanding mirrors this. Because one part of a pair of virtual particles crosses the horizon, and the other one does not, they become separated by said horizon and cannot recombine and disappear. The particles become actual and not virtual, but one is lost to the hole. Hence, it looks to the external world as if a particle was emitted by the hole. Note that to my (layman's) knowledge, this has not been actually observed, but does seem to be a modern consensus and involved a paid bet.