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Originally Posted by korjik
The event horizion is not a solid surface and as such dosent relly rotate. If you were falling in and could survive the tidal forces, you would never even see the event horizion.
A neutron star has between 1.4 and ~3 solar mass. The originator stars may be heavier, but a neutron star cannot have between 3 and 4 solar mass. The limit on mass is a bit fuzzy because the conditions of the star can change the pressure in the star.
There are a few good candidates for a black hole where there is a massive compact object that should be identifiable as a neutron star, but there is not a neutron star there.
Black holes have been a part of theory since well before string theory, and they fit without string theory.
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Black Hole is it an idea that if star is more massive then 3 solar masses it might collapse under Event Horizon into a singularity point - it is an unobserved theory only. A Black Hole in our Milky Way has 150 millions km diameter, more massive BH has a diameter even more then Pluto orbit - it is density much less then neutron star.
If two Neutron Star colide and merge there is an enormous Gamma Rays Burst - this Rays are not bound under an Event Horizon.
If a matter falls down into a Black Hole (Quasar) a part of this matter is ejected in the jets just from the Black Hole - it is not bound under Event Horizon.
A better telescope in the future will show where comes from the Radio Emission of the Black Hole and we will know a structure of the Black Hole.
I would like in my link
http://www.blackholes.int.pl ,to prove that Black Holes have an inside structure and it may expand.
This expansion is for distant observer very slowly but for an inside observer as fast as almost speed of light . It is because a time dilation.