All Questions
Tagged with electromagnetic-radiation black-holes
35
questions
9
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answers
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Why is it hard to detect a black hole
I've read in some texts that we can't directly observe a black hole in space because not even light can escape from its gravity. Some of the indirect observational methods mentioned are, gravitational ...
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0
votes
0
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Primordial black hole: how dense does matter need to be to feed it?
Primordial black holes are a dark matter candidate.
Suppose you put a primordial black hole the mass of an asteroid in Earth's core. Will it grow? NO! The black hole will be on the order of a proton ...
- 6,531
4
votes
1
answer
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What is the effect of gravity on gamma rays?
I read an article about a Gamma Ray burst linked to a black hole. How does high gravity fields affect gamma rays?
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21
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2
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Can a black hole be formed by electromagnetic radiation?
I'm trying to find out if black holes could be created by focusing enough light into a small enough volume.
So far I have found (any or all may be incorrect):
Maxwell's equations are linear, ...
- 213
2
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3
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Light bending by black holes
In the center of our milky way, it is assumed that a black hole exists with a mass of $\approx 4\times 10^6$ times our sun's mass. How much light bending (in degrees) would arise for stars that are in ...
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