what are the major types of black holes?

Question

and what is a stellar black hole?

Answer 1

Stellar black holes and supermassive black holes. Steller black holes are created when a massive star goes supernova and the core has such a strong gravitational pull, it's escape velocity exceeds the speed of light. Supermassive black holes are thought to exist in the center of most (if not every) large galaxy, and nobody knows how they formed although it probably has something to do with the formation of the galaxies themselves.

Answer 2

A stellar black hole is the remnant of a very large star. The minimum size would be 3.2 solar masses.

There isn't much to say about black holes. They have a rotation rate, a magnetic charge, a mass and a location. There isn't anything else we can say about them, because nothing comes out of them to measure.

Hawking predicted the existence of smaller black holes that could have been formed by the big bang. There is a process where black holes can evaporate, called Hawking radiation.

I'd guess that there really are two types - Hawking black holes, formed during the big bang, and stellar black holes, formed by remnants of supernovae. Both can grow if nearby mass can be attracted to the hole.

Answer 3

A non-rotating, neutral black hole is a Schwarzchild black hole, a rotating one is a Kerr black hole, a charged one is a Newman black hole and a charged rotating black hole is, logicaly enough, a Kerr-Newman black hole.

A stellar black hole is formed by accumulating material at nuclear densities - around 10^18 kg / metre^3. The alternative is a much smaller primordial black hole, where the average density is much higher. It's thought that these very small black holes could have been formed in the early life of the universe - hence primordial.

Answer 4

Black holes are a concept. They are still theory. Were you to determine mass acceleration 400 miles from the center of our sun, you would find that the mass would be exceeding the speed of light in one second. A mass cannot remain a mass and move atomically at this speed. Were "black holes" a reality, one would exist within our sun. http://360.yahoo.com/noddarc "The Problem and Repair of Relativity" may be of interest.