Naked Science Forum
General Science => General Science => Topic started by: jerrygg38 on 31/08/2016 13:42:08
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Do black holes explode?
The big bang appears to be an explosion of a singular black hole where all the energy of the universe existed at a single point or alternatively most of the energy of the universe existed at a single point while additional energy was flowing into that point. The big bang explosion could have sent parts of the black hole all over the universe so that billions of mini-black holes were distributed in a sphere. Thus billions of black holes could have then exploded to produce the universe that we now see. Alternately the distributed sphere of energy could still have had a black hole at the center which in turn exploded again to create a void of energy at the center and a sphere of energy that formed the universe. There are many possibilities.
The latest report from the astronomers is that our galaxy black hole exploded 6 million years ago producing very high temperature energy which left the center of our galaxy empty of stars. The indications are that a black hole eats up matter and at a certain point spits it out. One possibility is that black holes continually eat matter and continually spit out energy. The alternative is that it builds up energy and then blows up. Another possibility is that it does both. It continually radiates energy but eats more than it throws up and then over time reaches a point where it explodes.
We have a lot of possibilities. What do you guys think from existing theory?
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According to Hawking black holes gradually lose mass due QM process presumably when it falls to the plank mass it explodes to radiation not a large amount in cosmic terms.
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The latest report from the astronomers is that our galaxy black hole exploded 6 million years ago producing very high temperature energy which left the center of our galaxy empty of stars.
When we say a bomb "explodes", we mean that matter comes out of the bomb at high temperature and high velocity. Effectively nothing comes out of a supermassive black hole - but things that are close to the black hole can be heated to high temperatures, and be ejected at high velocity.
The supermassive black hole in the center of our galaxy will not explode in the same way that a micro-black hole can explode. The quantum effects of Hawking radiation can almost be ignored on large black holes.
The types of things that can cause supermassive black holes to act more dramatically include:
- A large bunch of stars falling into close orbit around the black hole, creating a super-hot accretion disk, and blasting jets of matter out of the disk of the galaxy at a significant fraction of the speed of light. Currently, our galaxy seems rather "quiet" in this regard (bearing in mind that what we see now actually happened tens of thousands of years ago).
- A merger with another supermassive black hole from another galaxy (our galaxy has apparently swallowed a number of smaller galaxies in its lifetime, and we are on course to be swallowed by the Andromeda galaxy in about 5 billion years). It is thought that the orbital tugs of two orbiting black holes will clear out a volume of space equivalent to twice their orbital radius. When they eventually merge, there will be a significant jolt of gravitational waves.
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Thanks for the comments. It seems to me that at big bang the universe was one black hole. The only difference is that outside this black hole was nothing. Thus once the entire universe existed only as a black hole, there was nothing to hold it together. Presently a super-massive black hole exists within everything else. Until the universe expands greatly and looks like nothing to a super-massive black hole then all final black holes will explode into fundamental sub-particles and sub-photons. Does that make sense to you?