Black Hole Singularity: Infinite Mass & Merging Supermassive Black Holes

[James S]

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

 

[James S]

Wait. That Would Be Infinite Gravity Instead?

 

[Vanadium 50]

If the Singularity Has Infinite Mass

It does not.

 

[berkeman]

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
At the center of a black hole as described by general relativity lies a https://www.physicsforums.com/wiki/Gravitational_singularity , 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 , it is smeared out to form a https://www.physicsforums.com/wiki/Ring_singularity 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 .

 

[The Fishicist]

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.

 

[PeterDonis]

Infinite Gravity

A black hole doesn't have infinite gravity either.