Best answer:
Mathematically, gravity resides at the event horizon (not inside) and its "information" is available to the rest of the universe.
Gravity (unlike other forces) is an effect. Under the mathematical models that work under Relativity (the same ones that explain both gravity AND black holes), gravity is not...
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Best answer: Mathematically, gravity resides at the event horizon (not inside) and its "information" is available to the rest of the universe.
Gravity (unlike other forces) is an effect. Under the mathematical models that work under Relativity (the same ones that explain both gravity AND black holes), gravity is not a force, but a deformation of spacetime. As soon as you have a mass (regardless where the "information" about this mass resides), spacetime -- or the "fabric of space" as Einstein put it -- will respond by altering its shape.
Having said that, the idea that black holes "suck" matter is wrong. The gravity caused by the amss of a black hole works exactly the same as the gravity caused by a mass of equal quantity that is not a black hole. If you were to magically replace our Sun with a black hole of equal mass, the planets would continue on their orbits same as before (except, of course, things would get very cold, very fast).
You only get "sucked" into the black hole if you get too close (in the case of the black hole with one solar mass, that means 3 km from what appears to be the centre). Given that Earth is 150 MILLION km from the Sun, the gravitational field around Earth would remain the same, whether we keep our real Sun, or replace it with a one solar-mass black hole.
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4 days ago