Black Holes create Space-Time hypothesis.

[Aborias]

Black Holes create Space-Time hypothesis.

 

I have very little knowledge of actual physics and mathematics, but I would like to throw this out there to see if there's any potential validity behind it and to get some feedback, and get it into a community that might be able to do something with it.

 

If the universe is expanding in every direction, and galaxies are seemingly moving away from each other as well, is it possible that the black holes in the center of galaxies create Space-Time?

 

If they do, would it be also be viable to observe several black holes over the course of several years, document the distance relationships between them, and see if there is in fact a correlation.

 

It would be interesting to see the reaction and relationships, if any exists, on those distances and speeds when a star is consumed by a black hole.And, if Space-Time is being created in the process, how and where would it form? If gravity can collapse Space-Time, could it just be relocating it or even creating it?

 

-Greg R

[Phi for All]

It's my understanding that GR has models with no mass in the universe whatsoever, and spacetime still exists. If a BH is responsible, I don't think those models would work. Mass is not required for spacetime.

[Strange]

Black holes and the expansion of space are both consequences or predictions of general relativity, the theory that models the curvature of space-time. Apart from that, there isn't any real connection between them.

 

Space-time isn't made of "stuff" so it doesn't need to be created. All the "expansion of space" means is that, in the absence of any other forces, things will tend to get further apart. So the only thing that is being "created" is distance.

[ajb]

We see the expansion of the Universe at the level of clusters of galaxies. The local gravitational attraction within a galaxy or cluster of galaxies overcomes the global tendancy for expansion. Thus, it seems there is no definite link between the existance of black holes at the centre of many (if not all) galaxies and the expansion of the Universe.

[Aborias]

Well thank you all for the responses. It definitely clarifies some concepts for me, and of course only begs more questions.

 

Phi - I can definitely see how some models would reflect that. Especially thinking of an earlier universe, where photons, gluons, and potential other unstable mass-less particles would be the only thing in existence in that period of time. In the concept of another potential universe, that would mean it most likely started with less energy that would suffer from a heat death scenario at a much younger age, without the ability for clusters of mass to form black holes right?

 

Strange - Your answer really made me think of think of space-time in a purely boundless and existential manner. It demanded more clarity for me, and I did some looking into cosmic radiation and the particle horizon concepts and I think those helped me be able to visualize more along the lines of what has/is more likely happened/happening, which leads into AJB's post.

 

AJB - I definitely see how this can make my hypothesis way less probable. If black holes are creating space-time in between galaxies it would be far less probably to see galaxies colliding, unless on a faster trajectory towards each other faster than the space-time is being created in between the two.

 

Which leads me to think, it is simply our perspective of distance and the expansion of the universe, but it also only makes me want to look into alternative relationships black holes may have with dark matter / dark energy and space-time. The explanations and answers you guys gave have led me down a road to more insight, so thank you for that. Definitely have some reading to do

[ajb]

If black holes are creating space-time in between galaxies...

There is also no mechanism for this. Look up FRW cosmologies.

Edited June 25, 2016 by ajb