How Do Black Holes Exert Gravitational Force If They Capture Gravitons?

In summary, black holes can have a gravitational influence despite the presence of the gravitron because gravitons are virtual particles that can exceed the speed of light and escape from inside the event horizon of a black hole. Additionally, the time dilation effect at the event horizon means that the black hole never quite forms, allowing the gravity of the object collapsing to still be exerted.
  • #1
poiboy
2
0
If gravity is "enabled" (for lack of a better word) through the gravitron, how could black holes have a gravitational influence? Wouldn't the black hole suck the gravitron back in, as it would with the photon? Thanks for any replies.
 
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  • #2
In theories where gravity is due to exchange of gravitons, these gravitons are virtual particles, are virtual gravitons. Virtual particles can exceed the velocity of light, so can escape from inside the event horizon of a BH. Virtual photons can escape from inside the event horizon as well
 
  • #3
Black holes (resulting from something collapsing) never quite make it, as far as an outside observer (o.o.) can tell. This comes about because time at the black hole appears to the o.o. to slow down to a crawl. Another way of looking at it is that the black hole takes forever to form. The gravity (gravitons?) that is exerted is simply that of the object about to become a black hole, but never getting there.
 
  • #4
Originally posted by poiboy
If gravity is "enabled" (for lack of a better word) through the gravitron, how could black holes have a gravitational influence? Wouldn't the black hole suck the gravitron back in, as it would with the photon? Thanks for any replies.

There is a Relativity FAQ on this exact topic. Please see
http://math.ucr.edu/home/baez/physics/Relativity/BlackHoles/black_gravity.html
 

1. What is a black hole?

A black hole is a region in space where the gravitational pull is so strong that nothing, including light, can escape from it. It is formed when a massive star dies and its core collapses in on itself.

2. How are black holes detected?

Black holes cannot be seen directly, but their effects on their surroundings can be observed. Scientists use telescopes and other instruments to detect the radiation and distortions caused by black holes.

3. Can anything escape from a black hole?

No, once something enters a black hole's event horizon (the point of no return), it cannot escape. The extreme gravitational pull of a black hole is too strong for anything to escape, including light.

4. How big can a black hole be?

Black holes can vary in size, with the smallest being known as "micro" black holes and the largest being "supermassive" black holes. Supermassive black holes can have a mass equivalent to billions of suns.

5. What would happen if I fell into a black hole?

If you were to fall into a black hole, you would experience a phenomenon known as "spaghettification," where the intense gravitational pull would stretch and compress your body until you eventually reach the singularity (the point of infinite density) at the center of the black hole.

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