- #1
Dmitry67
- 2,567
- 1
I posted it in SR/GR but probably it really belongs here:
I can explain my motivation. Non red-shifted Hawking radiation is very intense. So when observer approaches the singularity, singularity is always hidden behind the apparent horizon. However, the horizon it covered with a cloud of hawking particles. These particles (in a frame of a falling observer) are emitted from the horizon but then fall back into the singularity together with the observer.
But the singularity of mass M is represented with the mass of the matter inside the apparent horizon S and the 'cloud' C, M=S+C
While C is almost negligible far from the singularity, it is quite possible that C>S close to it. But then singularity itself does not exist because the cloud 'blurs' the singularity and flattens space-time.
I am looking at the way how Hawking radiation is derived:
http://en.wikipedia.org/wiki/Hawking_radiation
Where can I find more info about it? (for amaters like me)
Formula for the Unruh temperature gives an infinite temperature at the horizon.
At the same time AFAIK the apparent horizon recedes in front of the falling observer.
Also, is my assumption correct that observer sees radiation from an apparent horizon, not from an absolute one?
The Hawking radiation looks very intensive but extremely red-shifted by the gravitation. Like almost infinity devided by almost infinity.
So I wonder how intensive the Hawking radiation is for the freely falling observer.
I can explain my motivation. Non red-shifted Hawking radiation is very intense. So when observer approaches the singularity, singularity is always hidden behind the apparent horizon. However, the horizon it covered with a cloud of hawking particles. These particles (in a frame of a falling observer) are emitted from the horizon but then fall back into the singularity together with the observer.
But the singularity of mass M is represented with the mass of the matter inside the apparent horizon S and the 'cloud' C, M=S+C
While C is almost negligible far from the singularity, it is quite possible that C>S close to it. But then singularity itself does not exist because the cloud 'blurs' the singularity and flattens space-time.