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

  • Context: Graduate 
  • Thread starter Thread starter typical guy
  • Start date Start date
  • Tags Tags
    Big rip Rip
Click For Summary
SUMMARY

The discussion centers on the implications of dark energy on black holes in the context of the Universe's accelerated expansion. It concludes that black holes will not be ripped apart by this expansion; instead, they will continue to evaporate through Hawking radiation, independent of the Universe's acceleration. The conversation also touches on theoretical connections between inflation and dark energy, although no compelling theories currently exist. The idea of a massive black hole explosion affecting cosmic acceleration is dismissed as flawed.

PREREQUISITES
  • Understanding of dark energy and its role in cosmic expansion
  • Familiarity with black hole physics, specifically Hawking radiation
  • Knowledge of cosmological inflation theories
  • Basic grasp of astrophysical concepts related to mass-energy conversion
NEXT STEPS
  • Research the mechanisms of Hawking radiation and its implications for black hole longevity
  • Explore current theories connecting cosmic inflation and dark energy
  • Investigate the effects of accelerated expansion on large-scale cosmic structures
  • Examine the concept of mass-energy equivalence in astrophysical contexts
USEFUL FOR

Astronomers, astrophysicists, and students of cosmology interested in the fate of black holes and the dynamics of cosmic expansion.

typical guy
Messages
24
Reaction score
0
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?
 
Space news on Phys.org


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.
 

Similar threads

Undergrad Can the big rip ever be ruled out?
  • · Replies 2 ·
Replies
2
Views
2K
High School Could Black Hole Collisions Trigger a Cyclical Big Bang and Universe Rebirth?
  • · Replies 19 ·
Replies
19
Views
2K
High School What would a timeline for the Big Rip look like?
  • · Replies 2 ·
Replies
2
Views
4K
High School Could the source of dark energy be our parent black hole feeding?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Black hole mass coupled to expansion -- astrophysical source of dark energy?
  • · Replies 134 ·
5
Replies
134
Views
12K
Undergrad Shouldn't the Big bang be physically impossible?
  • · Replies 25 ·
Replies
25
Views
4K
High School Celestial objects in the very far future
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Why didn't the Big Bang form a Black Hole?
  • · Replies 7 ·
Replies
7
Views
3K
High School What happens to information inside a black hole?
  • · Replies 4 ·
Replies
4
Views
896
Undergrad Illuminating Black Hole Shadows with Dark Matter Annihilation
  • · Replies 5 ·
Replies
5
Views
984