Main Question or Discussion Point
Blackhole is a little bit confusing topic for me.Can anybody tell me,whats the reason and principle behind it that it absorb all sort of matter and radiations and still not releasing out?
A black hole does not have infinite mass. It is a black hole because its size (radius) is very small for its mass.We know that the greater the mass of on object, the greater its gravitational field. Well, a black hole has infinite mass, so the escape velocity is greater than the speed of light.
Actually the matter approaches a certain part and then become frozen above the event horizon. The material is redshifted so far that it becomes impossible to observer it. It then becomes impossible to measure the mass distribution and the gravitational field becomes identical to the field that would result if all the matter was confined to a point.At one point, the gravitation of this remaining core becomes so high, that all atoms basically merge into 1 point , ...
The gravitational force doesn't change at all, but the star itself can no longer fuse elements(because there's none left that it has the capacity to fuse), and so there is no longer enough pressure inside the star to resist gravity. With the pressure resisting gravity gone, the only thing left for the star to do is to collapse under it's own weight.why does the gravitational force suddenly become so strong inside the core? What changes inside the core during the supernova to make gravitational force rise?
I'm pretty sure the change of state would happen in the fraction of a second. Regarding gravity waves, it would be interesting to know (if they exist) what there range is. Do they behave like electromagnetism or are they short range? I'm almost tempted to believe they occur within a radius defined by what the compact object would have had if it had been a regular star. When looking at coordinate acceleration, gravitational redshift and frame dragging, I realized the effects of these phenomena tail off to virtually zero (ca/gr become 1, fd becomes 0) at a radius based on the mass of the compact object (i.e. white dwarfs, neutron stars & black hole) having the density of a main sequence star; (say for a 3 sol mass black hole, all the effects of frame-dragging, gravitational redshift and co-ordinate acceleration become zero at a radius of 1 million km, the radius of a 3 sol mass star based on the average density of our Sun). It's as if anything out of the ordinary was confined within this zone, which might include gravity waves.How fast would it happen? This might determine how detectable such a wave might be.