The Big Rip: Will Black Holes Be Ripped Apart Too?

In summary, the conversation discusses the potential impact of dark energy on the lifespan of black holes and the possibility of connecting inflation and accelerated expansion. It is suggested that the accelerated expansion does not significantly affect the behavior of black holes, and there are currently no concrete theories connecting inflation and acceleration.
  • #1
typical guy
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Question about "The Big Rip"

With dark energy accelerating the expansion of the Universe, has anyone done calculation on how long it will take for black holes to be ripped apart? I'm assuming here that space is going to be expanding so fast that the acceleration of the material towards itself due to gravity will not be able to keep up. Will all black holes be destroyed at the same time or will some take longer than others? I'm assuming here (possibly incorrectly) that black holes will be the last structures in the Universe at this time.

If we assume the Universe has 1,000 times the mass as our observable universe and we place all that matter inside of one black hole then we "explode" (for lack of better terms) this hole, what would happen? I assume that everything initially released would be massive amounts of energy followed by energy to mass conversions. Would this be enough to slow the acceleration of the Universe for a while? Maybe 6 or 7 billion years? This obviously has flaws and probably has no relevance to reality but I was thinking a little after reading some other questions on this site and remembered previously reading that some folks think that dark energy may have been the driving force of inflation. This makes me wonder if inflation is just the pre-matter acceleration. When did matter form anyway?
 
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  • #2


typical guy said:
With dark energy accelerating the expansion of the Universe, has anyone done calculation on how long it will take for black holes to be ripped apart?
It doesn't happen. The accelerated expansion doesn't cause objects like black holes to change their behavior by any significant amount. They just evaporate through Hawking radiation as they would do with or without the accelerated expansion.

And yes, by the way, there are theorists that attempt to connect inflation and the current accelerated expansion. There are as yet no compelling candidate theories (currently they're just stabs in the dark), but there are theorists that are still looking.
 

1. What is the Big Rip?

The Big Rip is a hypothetical cosmological event in which the expansion of the universe becomes so rapid that it tears apart all matter and space itself.

2. How does the Big Rip differ from the Big Bang?

The Big Bang is the widely accepted theory for the beginning of the universe, while the Big Rip is a possible end of the universe. The Big Rip suggests that the expansion of the universe will continue to accelerate until it is torn apart, while the Big Bang explains the initial rapid expansion of the universe.

3. What would cause the Big Rip to occur?

The Big Rip would occur if the dark energy in the universe continues to increase in strength, causing the expansion of the universe to accelerate at an increasing rate. This would eventually lead to the tearing apart of all matter and space.

4. When is the Big Rip predicted to happen?

According to current theories, the Big Rip could occur in approximately 22 billion years. However, this prediction is based on the assumption that dark energy will continue to increase in strength at its current rate.

5. Is the Big Rip a proven theory?

No, the Big Rip is still a theoretical concept and has not been proven. It is based on current understanding of the universe and the behavior of dark energy, but more research and evidence is needed to confirm its validity.

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