All Questions
5
questions
2
votes
1
answer
253
views
What's the meaning of 'cold' in the CDM model?
On Wikipedia, it says
In cosmology and physics, cold dark matter (CDM) is a hypothetical type of dark matter. According to the current standard model of cosmology, Lambda-CDM model, approximately 27% ...
4
votes
1
answer
116
views
Why is Fuzzy Dark Matter Cold?
Fuzzy dark matter (FDM) has a typical mass of $10^{-22}$ eV. With such a low mass, why is it typically assumed to be cold? That is, what keeps the FDM non-relativistic. With such a low mass, wouldn't ...
- 364
15
votes
6
answers
5k
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8
votes
1
answer
2k
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Why do physicists think that the dark matter is cold?
Most of the dark matter in the Universe is cold or nonrelativistic which rules out neutrinos as dark matter candidate as they are hot or relativistic. But why do physicists think that the dark matter ...
- 26.8k
1
vote
2
answers
439
views
Large scale structure of the universe
I have read of two seemingly straightforward explanations that give reasons for the inhomogeneity of the large-scale structure of the universe (i.e. why stars / galaxies formed where they did)
One is ...
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