Can black holes be disintegrated from a sufficiently powerful explosion?

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Discussion Overview

The discussion centers around the question of whether black holes can be disintegrated by a sufficiently powerful explosion or other astrophysical phenomena. Participants explore various theoretical scenarios, including collisions with massive objects and the effects of dark energy, while considering the fundamental nature of black holes and their event horizons.

Discussion Character

  • Debate/contested
  • Exploratory
  • Conceptual clarification
  • Theoretical speculation

Main Points Raised

  • Some participants argue that the gravitational field of a black hole is too strong for any explosion to disintegrate it.
  • Others propose that a collision between two black holes could result in a merger rather than an explosion, with significant energy being released in the process.
  • One participant suggests that dark energy could theoretically prevent collapse but questions its effects within the event horizon.
  • There are claims that any energy added to a black hole simply increases its mass, leading to a larger black hole.
  • Some participants speculate about the role of Hawking radiation in the disintegration of black holes, suggesting that accelerating spin or adding heat could enhance this process.
  • One participant humorously suggests the idea of a "space monster" affecting the black hole's properties, reflecting the speculative nature of the discussion.
  • There are discussions about the implications of energy conditions and singularity theorems in relation to black hole behavior.

Areas of Agreement / Disagreement

Participants generally disagree on the possibility of disintegrating a black hole, with multiple competing views presented. Some assert that nothing can disrupt a black hole, while others explore hypothetical scenarios that could influence its mass or properties.

Contextual Notes

Participants express uncertainty regarding the effects of various phenomena on black holes, including the implications of dark energy and the nature of singularities. There are also references to theoretical papers that challenge conventional understandings, but these are not universally accepted.

  • #31
I vaguely remember a pop-sci bit a while back talking about creating baby universes in a lab by pinching off bits of space which would then be separate from our universe and expand in their own big bang. Something like this http://www.npr.org/templates/story/story.php?storyId=6545246

I have no idea what the details are but someone more familiar with this idea might chime in. Would it be possible to pinch off a volume of space containing a black hole so that the black hole no longer exists in out universe, but in its own new universe? It may not technically be disintegration as the OP was asking about the effect is the same, the BH no longer exists, at least in our universe.
 
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  • #32
Spinalcold said:
Wouldn't a faster spinning black hole evaporate SLIGHTLY faster due to hawking radiation getting caught up in the polar jets? I could he wrong but I thought faster spinning black holes have larger jets which help the accretion disk slow enough so more particles can be absorbed. The same process could help to throw away hawking radiation so that less of it was reabsorbed.

According to a number of sources, spinning (and charge) actually reduces HR though for it to reduce significantly, the black hole would have to be very near maximal (i.e. a/M=1).

One source-
http://edoc.ub.uni-muenchen.de/6024/1/Deeg_Dorothea.pdf
 
  • #33
Even if you could somehow blow apart a black hole, which seems impossible because trying to do so would just make the black hole larger, it would break into smaller black holes, which could merge back into the original. Nothing changed.
 
  • #34
what effect would a supernova blast have if it were within a light year distance of a black hole? we shall never know but the math I'm sure would boil it down to the dreadful singulairity!
 
  • #35
jarroe said:
what effect would a supernova blast have if it were within a light year distance of a black hole? we shall never know but the math I'm sure would boil it down to the dreadful singulairity!

Not much. It might mess with an accretion disk if there was one around the black hole, but that's about it. Light that entered the event horizon would be gone and add to the mass of the black hole just like what happens to all light that enters the EH.
 

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