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Why dark matter (probably) can’t explain the 21cm Cosmic Dawn signal

Why dark matter (probably) can’t explain the 21cm Cosmic Dawn signal

by Philippa Cole | Mar 23, 2018 | Daily Paper Summaries

Less than a month after the first detection of a cosmic 21cm signal by EDGES was published, and hopes are already dwindling for the models of dark matter that were proposed to explain the unexpected signal.

(Just can’t get enough) primordial black holes

(Just can’t get enough) primordial black holes

by Philippa Cole | Feb 13, 2018 | Daily Paper Summaries

The authors show that it’s possible to produce enough asteroid-mass primordial black holes to make them a viable dark matter candidate, without violating the new and very stringent constraints on the number of allowed primordial black holes from the Subaru Hyper Suprime-Cam.

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