Is a galaxy's halo displaced dark matter?

[Mike Johnson]

Scientists Thought All Galaxies Had Dark Matter, but They Just Found One Without It

Could dark matter fill 'empty' space, strongly interact with visible matter and be displaced by visible matter?

Could the reason for the mistaken notion the galaxy is missing dark matter is that the galaxy is so diffuse that it doesn't displace the dark matter outward and away from the galaxy to the degree that the dark matter is able to push back and cause the stars far away from the galactic center to speed up?

What if it's not that there is no dark matter connected to and neighboring the visible matter; it's that the galaxy is not well defined enough to displace the dark matter to such an extent that it forms a 'halo' around the galaxy?

Could a galaxy's halo be displaced dark matter and these types of galaxies are not coalesced enough to displace the dark matter into forming a halo?

 

[fresh_42]

We already have a thread about this phenomenon:
https://www.physicsforums.com/threads/galaxy-with-no-dark-matter-ngc1052-df2.943345/
Please re-post your questions there.

Thread closed.