If the Singularity in a Black Hole Has Infinite Mass

  • Thread starter James S
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If the Singularity Has Infinite Mass, How Does Merging With Another Black Hole Create "Suoermassive" Black Holes? Infinite Plus Infinite Is Infinite. No Increase.
 

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  • #2
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Wait. That Would Be Infinite Gravity Instead?
 
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Vanadium 50
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If the Singularity Has Infinite Mass
It does not.
 
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berkeman
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If the Singularity Has Infinite Mass, How Does Merging With Another Black Hole Create "Suoermassive" Black Holes? Infinite Plus Infinite Is Infinite. No Increase.
A black hole has finite mass. You are probably thinking of the density of the singularity...

http://en.wikipedia.org/wiki/Black_hole
Singularity
Main article: https://www.physicsforums.com/wiki/Gravitational_singularity [Broken]
At the center of a black hole as described by general relativity lies a https://www.physicsforums.com/wiki/Gravitational_singularity [Broken], a region where the spacetime curvature becomes infinite.[54] For a non-rotating black hole, this region takes the shape of a single point and for a https://www.physicsforums.com/wiki/Rotating_black_hole [Broken], it is smeared out to form a https://www.physicsforums.com/wiki/Ring_singularity [Broken] lying in the plane of rotation.[55] In both cases, the singular region has zero volume. It can also be shown that the singular region contains all the mass of the black hole solution.[56] The singular region can thus be thought of as having infinite https://www.physicsforums.com/wiki/Mass_density [Broken].
 
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  • #5
It has a specific mass, but theoretically infinite density. The concept behind a black hole is if you rolled a ball on a trampoline it would warp the surface, and it would pull other balls to it. A black hole is essentially a hole in the trampoline.
 
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PeterDonis
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Infinite Gravity
A black hole doesn't have infinite gravity either.
 

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