Cosmological Difficulties with Modified Newtonian Dynamics (or: La Fin du MOND?) — mentioned by XorNot

Thu, 20 Jun 2024 16:07:55 GMT

For one thing MOND doesn't actually appear to eliminate the need for dark matter[1]. It gets rid of ~80% of the missing mass requirement, but not all of it. Whereas pure DM can just eliminate MOND. Then you've got the "Bullet Cluster"[2] - where two colliding galaxies have had their observable and dark matter masses apparently separated. MOND can't explain this one without a lot of tweaking, but it's pretty trivial for DM: electromagnetically interacting matter is "sticky" where as gravity only matter isn't. The Bullet Cluster shows a galaxy shaped blob of gravitational lensing exactly where…

Paper and discussion history. A mention is not an endorsement.

Cosmological Difficulties with Modified Newtonian Dynamics (or: La Fin du MOND?) · HackerPapers discussions

Cosmological Difficulties with Modified Newtonian Dynamics (or: La Fin du MOND?) — mentioned by XorNot