Dark matter was one of the Natural sciences good articles, but it has been removed from the list. There are suggestions below for improving the article to meet the good article criteria. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake. | ||||||||||||||||
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Current status: Delisted good article |
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Preprints to add after peer review
Putting these here to remember to check in on later:
- Oncins (2022) "Constraints on PBH as dark matter from observations: a review", comes with a video
- Bernard Carr et al. (2023) "Observational Evidence for Primordial Black Holes: A Positivist Perspective"
- Su, Li, and Feng (2023) "An inflation model for massive primordial black holes to interpret the JWST observations"
- Depta et al. (2023) "Do pulsar timing arrays observe merging primordial black holes?"
All four are pretty juicy relative to the dark matter composition question, which is why I'm a bit reluctant to add until they pass review. Sandizer (talk) 02:21, 5 October 2023 (UTC)
- Probably worth checking in on those peer review statuses, as https://iopscience.iop.org/article/10.3847/2041-8213/ad1bf0 states as an unqualified premise that AGN were around from z ≳ 15 (see the second line in the Discussion section.)
- ... Carr et al. 2024 made it in Physics Reports: https://www.sciencedirect.com/science/article/pii/S0370157323003976 -- it's a pretty ambitious review with 68 pages and 451 references.
- From the Conclusions: "much of the evidence point towards dark matter in PBHs with around a solar mass ... naturally explained if PBHs form at the QCD epoch and this is our preferred scenario." Sandizer (talk) 20:59, 15 February 2024 (UTC)
How old is matter?
Motsaathebekhanyisile (talk) 07:45, 18 February 2024 (UTC)
- @Motsaathebekhanyisile: 13.8 billion years. Before that everything was energy, and before that it was basically only geometry. But logic is and has been forever. Sandizer (talk) 05:24, 27 February 2024 (UTC)
21st century history
@Johnjbarton: what is the reason for this deletion? Is there a way to keep the sources? Do you think they can be summarized better? 141.239.252.245 (talk) 08:16, 19 April 2024 (UTC)
- Thanks for opening this topic.
- I reverted the edit as I said in the summary because the content is not "History" of Dark Matter. No historian has analyzed the history of Dark Matter and shown how primordial black holes became the alternative. On the contrary, the current consensus is cold dark matter: Lambda-CDM.
- The sources and a summary are already in the article in the section "Alternative hypotheses". As it stands it appears to be WP:UNDUE: with in the section "Alternative hypotheses" primordial black hole is given an entire paragraph while other alternatives rate a couple of words. Johnjbarton (talk) 15:18, 19 April 2024 (UTC)