Generalizing MOND to explain the missing mass in galaxy clusters · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1701.03369/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTGeneralizing MOND to explain the missing mass in galaxy clusters — mentioned by raattgifthttps://news.ycombinator.com/item?id=35924768urn:hackerpapers:mention:1701.03369:35924768Sat, 13 May 2023 02:08:31 GMT<p>[part 2/2] The result discussed at the link above comes from study of a the X-ray luminous and large MACS J1149.5+2223 from the MAssive Cluster Survey (MACS, &lt;https://iopscience.iop.org/article/10.1086/320958&gt;), redshift ~ 0.544 (around 5 billion light-years distance). As with most massive clusters, platforms like Hubble have observed multiple images of background (even more distant) bright objects near the centre of the galaxy cluster. The centre is found by looking at the proper motions and other features of its constituent galaxies, and the centre is relatively transparent. These features…</p><p><a href="https://hackerpaper.kaipfister.de/p/1701.03369/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.CO