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6 hours ago, DanMP said:

the rotation of the stars around the galactic center is influenced by other galaxies in the Universe in the same way as the DM

Not the same way. According to hypothesis of DM, it is concentrated near to galaxy, holds stars inside the galaxy. But I think that stars aren't holded there. They moving around the center of galaxy and out, their velocity slowly increasing due to gravity of far galaxies.

Calculation is simple, it is based on known mass and size of Universe. But, to get expecting result, we have to take in account dynamical nature of gravity.

Edited by kba

1 hour ago, kba said:

But I think that stars aren't holded there

!

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If you have your own thoughts, they belong in their own thread. Posting them in someone else’s thread is hijacking.

 

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