Strange Posted April 6, 2018 Posted April 6, 2018 The plot thickens (or not) Quote Three years ago, a Durham-led international team of researchers thought they had made a breakthrough in ultimately identifying what dark matter is.... However, the same group of astronomers now say that new data from more recent observations shows that dark matter in the Abell 3827 cluster has not separated from its galaxy after all. The measurement is consistent with dark matter feeling only the force of gravity. https://phys.org/news/2018-04-dark-interactive.html
beecee Posted April 6, 2018 Posted April 6, 2018 7 minutes ago, Strange said: The plot thickens (or not) https://phys.org/news/2018-04-dark-interactive.html Thanks Strange, damn!! Got in before I could rub the sleep out of my eyes...again! Important extract from your article, which may [or may not] explain observations. Quote While the new results show dark matter staying with its galaxy, the researchers said it did not necessarily mean that dark matter does not interact. Dark matter might just interact very little, or this particular galaxy might be moving directly towards us, so we would not expect to see its dark matter displaced sideways, the team added.
JacobsLadder Posted April 12, 2018 Posted April 12, 2018 I suspect dark matter isn't very exciting at all. I think it is just lots of ordinary matter floating about in space.
beecee Posted April 12, 2018 Posted April 12, 2018 (edited) 56 minutes ago, JacobsLadder said: I suspect dark matter isn't very exciting at all. I think it is just lots of ordinary matter floating about in space. Possibly a small percentage maybe, [we call that MACHO "Massive Astrophysical Compact Halo Object"] but certainly the evidence for non baryonic DM is pretty weighty at this time. So much for your suspicions. Edited April 12, 2018 by beecee 1
Strange Posted April 12, 2018 Author Posted April 12, 2018 5 hours ago, JacobsLadder said: I suspect dark matter isn't very exciting at all. I think it is just lots of ordinary matter floating about in space. The amount of dark matter required would be visible (absorbing/scattering light) etc. And the distribution of dark matter doesn’t match what would be produced by ordinary matter.
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