Question

How is a blackhole formed? Where does the mass of the absorbed object go in a blackhole?

Answer 1

You know how star fuse atoms? a star will keep on fusing and fusing and fusing, and density will increase. If the star is massive enough, gravity will become so strong that the star will collapse onto itself. That's the basic idea, somebody correct me if I'm wrong.

Answer 2

yes that is correct. to explain further, a star fuses atoms until they reach the element Fe or Iron. from there the star can not produce temperatures and pressures sufficient to create atoms with atomic numbers higher than Fe. The higher atomic numbered elements come from supernovas. If you answer the second question and prove it, you might just win yourself a Nobel Prize.

Answer 3

we dont know exactly what happens to the mass inside a back hole, because no light can escape the event horizon. We do, however, know that all the mass is there inside the event horizon

Answer 4

THe formation of a black hole goes in this order: A massive main sequence star runs low on hydrogen in it's core. The inward crush of gravity starts to overtake then outward push of hydrogen burning. The star starts to contract, thus heating up the core, which allows hydrogen to fuse into helium. This fusion creates an outward push, allows the star to expand out, until the star once again runs low on fuel and contracts again. This process repeats, while fusing heavier elements each time. This happens until iron is produced, which cannot be fused. At this point, there is nothing to stop the inward crush of gravity. In stars higher than 1.4 times mass of our sun, everything gets crushed into neutrons and the force of neutron degeneracy pressure holds off gravity, thus froming a neutron start. In the case of much more massive stars, gravity overcomes neutron degeneracy pressure, allowing there to be nothing capable of stopping gravity. Once this happens. gravity keeps crushing inward to the point where the escape velocity of a black hole is hreater than the speed of light