All Questions
Tagged with black-holes singularities
462
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Is singularity without black hole possible?
I read things related to the topic I am asking and I found the idea of a "Naked Singularity" but naked singularities can't be created without black hole.
I need to know whether it is ...
- 27
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Do strings prevent a black hole singularity? [duplicate]
Spacetime singularities are problematic in quantum gravity. String theory offers a way to construct such a quantum gravity.
Do strings offer a solution to this problem in the sense that point-like ...
- 500
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151
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Why do black holes remain? [closed]
When we think about black holes as not containing matter but being regions of warped spacetime, I can't think why they don't revert to being Euclidian space more quickly. This is because I can see how ...
- 740
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Is a black hole a single particle or a bunch of particles that binds together?
We know that in a neutron star all electrons and protons combine together and make neutrons because of the gravitational pulls. We also know that a black hole is much denser than a neutron star, we ...
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What does the Penrose diagram of a super extremal black hole (naked singularity) looks like?
What does the Penrose diagram of a super extremal black hole (naked singularity) looks like?
I have seen the ones for regular charged/rotating black holes, but I can't find a good clear one for super ...
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How is the singularity of Schwarzschild space-like if a one can take a time like path to it?
It is known that when one crosses the event horizon of a Schwarzschild black hole, one cannot return and is destined to hit the $r=0$ horizon. My understanding is that this can be seen from the ...
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Where does all the energy in black holes go?
The temperature inside of a black hole is almost absolute zero, so particles inside a black hole have almost zero motion.
So if they don't give out any heat or light, where does all the energy it ...
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Is it possible the Black Holes to be pure deformations in the fabric of spacetime and not an effect of super-dense matter?
Is there any theory in the literature that supports this hypothesis that BHs in their center do not have a super-dense matter singularity but are pure deformations in the fabric of spacetime itself or ...
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Schwarzschild-deSitter horizon singularity
The Schwarzschild-deSitter spacetime in Euclidean signature is given by:
$$
ds_{E}^{2}=\left(1-\frac{2M}{r}-\frac{H^{2}r^{2}}{3}\right)d\tau^{2}+\frac{dr^{2}}{\left(1-\frac{2M}{r}-\frac{H^{2}r^{2}}{3}\...
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Do the apparent infinities at the center of black holes disappear if instead a phase-change takes the place of its singularity?
When I watch physics documentaries that discuss black holes, they talk of impossible infinities in the singularity at a black hole's centre.
I was wondering about the bubbles of water vapour in ...
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230
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Why are we so sure that there is a singularity inside the event horizon of a black hole? [duplicate]
The Schwarzchild solution is derived in vacuum, and we find that light cones always move inward when r < 2M. So if a spherically symmetric, non rotating celestial object of mass M has a radius less ...
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Why do we keep referring to the Heisenberg Uncertainty Principle in situations that we don't - and can't - know about? [closed]
In all of my reading in physics, I have been surprised by the number of times that I read "this can't exist" or "that can't exist" because of the Heisenberg Uncertainty Principle. ...
- 4,783
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249
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Does the angular momentum of a Black Hole give insight into a potential solution for the singularity?
Alright so, i want to make one thing clear. I am a bit of a dumbass who watches a lot of PBS Spacetime and read a paper or to on visualising Black Holes. Example image (10k):
I asked a very similar ...
- 308
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Coordinate singularity in general relativity and smooth structure of a manifold
I'm a bit confused by the notion of coordinate singularity, or perhaps relatedly, the differential geometry behind GR.
In my elementary understanding of differential geometry, one starts with a ...
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Could the spin of a Black Hole give us insight into the size of the core? [closed]
As we know the conservation of angular momentum seems to be rather true and applies to black holes as well. We know that they spin and we also know the relationship between angular velocity and radius....
- 308