The discussion centers on the mechanics of Hawking radiation and the misconceptions surrounding particle escape from black holes. It clarifies that particles created just outside the event horizon can escape due to their inherent velocity, while emphasizing that this process is often misrepresented in popular science. The term "Strawman radiation" is introduced to highlight the inaccuracies in common analogies. Furthermore, it is noted that light emitted from just outside the event horizon can always escape, reinforcing the complexity of Hawking's original theories.
PREREQUISITESPhysicists, astrophysicists, science communicators, and anyone interested in the complexities of black hole mechanics and Hawking radiation.
This is not how Hawking radiation works. Unfortunately, how it actually works does not let itself be well described at B level so what is left for popular scientific descriptions are imperfect analogies.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
That's not Hawking radiation. That's Strawman radiation.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?
Light starting outside the event horizon can always escape - it’s always moving at the speed of light.pforeman said:How can a particle created just outside the event horizon with no velocity (?) escape a black hole, never to return, when black holes gravity is so strong that they can pull matter away from stars many kilometers distant?