B Can Particles Escape a Black Hole? The Hawking Radiation Improbability

[pforeman]

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?

 

[Orodruin]

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?

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.

 

[PeroK]

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.

 

[Nugatory]

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.

But more importantly and as @Orodruin points out above, there’s a lot more going on than just a particle being created and flying away. If you take a look at Hawking’s paper you will see why most popular explanations oversimplify the process.