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Posts by TankbusterGames

1) Message boards : MilkyWay@home Science : Galactic Rotation Curves Question. (Message 70880)
Posted 16 Jun 2021 by TankbusterGames
Post:
I think I need to ask this question now, because it's in my mind for several years and I just can't find an answer to it.
After observations of those galaxtic rotation curves, it's pretty clear, that there must be some additional thing, responsible for the additional gravity that is needed to hold those galaxies together.

Dark matter is what would be a easy explaination -> just more matter, not visible to us.

But wouldn't the most simple explaination just be, that the spacetime around the galaxy is warped? Doesn't it make sense for such big things to have a "torsional force" to spacetime itself?
Maybe our frame of reference is warped as well, so if a star in a far away galaxy goes around in a circle, it's just our observation from our point of view.
Here is a quick sketch of what I mean: It's not perfect, but with the explaination I think it makes a lot of sense. If our frame of reference or the spacetime is torn like this, we could actually observe stars moving in a circle while in reality they are not moving in a circle around the galaxy but in a more straight line away from it, if that makes sense. So it depends on the frame of reference ;)



I am not sure if it's the same thing described here, because I am not a physicist :(
https://en.wikipedia.org/wiki/Frame-dragging



But to me this makes the most sense and is the most easy explaination for this problem.
You should never trust your eyes only if relativity is involved so I want to know if a real scientist had the same idea once and did some calculations ^^
This question has been in my head for years and finally it's out now, please don't roast me >_<




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