Question

How does the temperature evolve in a star collapsing into a black hole?

Answer 1

We know the spectacular explosions of supernovae, that when heavy enough, form black holes. The explosive emission of both electromagnetic radiation and massive amounts of matter is clearly observable and studied quite thoroughly. If the star was massive enough, the remnant will be a black hole. If it wasn't massive enough, it will be a neutron star.  Now there's another mode of creation of black holes: the neutron star captures enough matter, or two neutron stars collide, and their combined mass creates enough gravity force to cause another collapse - into a black hole.

Answer 2

Hey !

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How does the temperature evolve in a star collapsing into a black hole?

Black hole is an imaginary hole formed by scientists that this is in universe whis is the head of all galaxies.

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Thanks !