Quote:
Originally Posted by korjik
What you seem to be talking about is a type II supernova where the core winds up forming a black hole. In this case, most of the energy you are worring about is emitted as neutrinos as the core collapses past the electron degeneracy pressure max. The core itself will simply collapse straight to a singularity. the residual charge and angular momentum become properties of the black hole.
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The neutrinos are emitted because the neutrons are created - it is very much energy. It is not all kinetic energy emitted. An ordinary neutron star oscillate and rotate, a greater becomes magnetars, pulsars...
The neutrons are not at rest.
A collapsing star with more than 7 solar masses has an average density like an ordinary neutron star or less. You may count it easy.
In a border condition just before the Event Horizon might be created every particle has an initial kinetic energy + potential energy. The potential energy is in this case almost E=pc - it may reach a relativistic velocity in the gravity well.
If you believe in energy conservation in a closed system -there is enough energy to pass the well of the Black Hole Like Object for all particles moving in this volume and they will move forever if the energy will not be extracted.
There is no Hawking Radiation at all. There is a radio emision only and we observe it from every Black Hole like Object. This objects are strong radio sources. Some radiation may be caused by particles falling down to the object but it is so strong that it is not explained yet.