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The whole galaxy works as two stars going like a binary star.
No need for a black hole at the centre of a binary star system.
Now:
Divide the galaxy symmetrically into two halves.
We then have:
Two moving centres of mass, taking centre of masses of each half and its tangential velocity.
Like a binary star system.
No need for a black hole at the centre.
Cheers,
Arindam Banerjee
Arindam Banerjee
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Nov 28, 2021, 9:59:19 PM11/28/21
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Nor neutron stars, big bang, etc.
Dark matter is like a big Moon. No hydrogen cover for the solid below.
>
> Cheers,
> Arindam Banerjee