New answers tagged dark-matter
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Does scalar field dark matter behave like dust in cosmology?
Thanks to @knzhou for clearing up my confusion in their comment. I'm not sure where I got the idea that $p=\rho$ for a scalar field, but this is not always the case. Looking at the energy density and ...
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How does MOND explain ‘low dark matter’ galaxies?
Last I saw the two most common ways are:
Modify the theory. This is how (extensions of) MOND explain the cosmic microwave background.
Keep the theory, but say it is non-visible ordinary matter ...
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Can Dark Matter be...(massive) gravitons?
It is still beyond the range of our current detectors to verify whether or not the graviton could have a non-zero mass.
The honest answer is that no one actually knows yet. But should the graviton ...
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Axion vs. WIMP / Is Axion a WIMP?
It is a strange but true fact in the history of dark matter that the axion started out with its interaction strengths set by an energy scale --- the axion decay constant --- that was near the rest-...
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