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Ryan Reed
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Past the event horizon of a black hole, gravity is so immense that even light can't escape. Wouldn't this cause the the gravitons, which travel the speed of light, to be trapped, making a singularity?
I don't know what you mean. There is ALREADY as "singularity" at the center of every black hole.Ryan Reed said:Past the event horizon of a black hole, gravity is so immense that even light can't escape. Wouldn't this cause the the gravitons, which travel the speed of light, to be trapped, making a singularity?
Ryan Reed said:I looked at that link and have read it but I don't understand; the curvature in space-time is caused by gravity, which is caused by gravitons. If gravitons can't escape the black hole, then the gravity well of the black hole should look like exactly that, a well. It shouldn't be bent gradually, it should be flat until it gets to the black hole and then becomes a pit. This is obviously not what happens.
Ryan Reed said:the curvature in space-time is caused by gravity
Ryan Reed said:which is caused by gravitons
stevebd1 said:'How does the gravity get out of a black hole?'
http://math.ucr.edu/home/baez/physics/Relativity/BlackHoles/black_gravity.html
There may be gravity without gravitons. While gravitons (or their classical counterpart - gravitational waves) correspond to a traveling gravitational field, there are also gravitational fields which do not travel. The non-traveling gravitational fields are static. Indeed, outside of the black hole there is a static gravitational field, so gravity is there without escaping from the black hole.Ryan Reed said:I looked at that link and have read it but I don't understand; the curvature in space-time is caused by gravity, which is caused by gravitons. If gravitons can't escape the black hole, then the gravity well of the black hole should look like exactly that, a well. It shouldn't be bent gradually, it should be flat until it gets to the black hole and then becomes a pit. This is obviously not what happens.
It makes no difference whether the matter is inside or outside the event horizon. The Schwarzschild metric is the solution for the vacuum region outside of any static and spherically symmetric mass distribution - the presence or absence of an event horizon and the distribution of matter on each side of the horizon is irrelevant.bahamagreen said:- if so, it seems like from the perspective of the black hole's interior this matter does enter the event horizon and might net the same external observation.
If gravitons only need to be exchanged if the gravitational field changes, then wouldn't a black hole not be able to move since that would need to change the position that its gravity originates?Markus Hanke said:The curvature of space-time is gravity; there is no cause-and-effect between the two.
Static gravitational fields do not require the exchange of gravitons; only changes in the gravitational field would be mediated by gravitons. In that picture, you can regard gravitational waves as "packets" of gravitons, somewhat similar to the relationship between photons and electromagnetic waves.
Ryan Reed said:If gravitons only need to be exchanged if the gravitational field changes, then wouldn't a black hole not be able to move since that would need to change the position that its gravity originates?
Gravitons do not escape a black hole. According to the theory of general relativity, once an object crosses the event horizon of a black hole, it cannot escape. This includes particles such as gravitons.
No, gravitons are believed to travel at the speed of light, which is the maximum speed allowed in the universe according to the theory of relativity.
The intense gravitational pull of a black hole affects the trajectory of gravitons, just like any other particle. However, because gravitons have zero mass, they are not affected by the "spaghettification" effect experienced by particles with mass.
No, gravitons cannot be used to escape a black hole. As mentioned earlier, once an object crosses the event horizon, it cannot escape, regardless of its properties.
No, all particles with mass are affected by black holes, including the other fundamental force particles such as photons, gluons, and W and Z bosons. Gravitons are unique in that they do not have mass, which makes them behave differently in the presence of a black hole.