Clusters of galaxies with modified Newtonian dynamics (MOND) · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/astro-ph_0212293/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTClusters of galaxies with modified Newtonian dynamics (MOND) — mentioned by ravi-deliahttps://news.ycombinator.com/item?id=27100331urn:hackerpapers:mention:astro-ph_0212293:27100331Sun, 09 May 2021 22:16:51 GMT<p>It really depends on your choice of modified gravity. Normal MOND isn&#x27;t extended to relativity, and your choice of how to do that is going to make some big differences. I found [this](https://arxiv.org/abs/astro-ph/0212293) paper from a pro-mond researcher that found a non-relavistic model couldn&#x27;t account for the behavior of dense galactic clusters like the bullet cluster, and there are plenty of papers by less sympathetic researchers that agree. I couldn&#x27;t find any non proof of concept papers that tested relativistic extensions of MOND for bullet-cluster-esq situations. Those proof of…</p><p><a href="https://hackerpaper.kaipfister.de/p/astro-ph_0212293/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph