All Questions
3
questions
0
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1
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493
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What is the 'effective number of neutrino species'? And how does that, rather than the total number of them, affect the universe?
As stated above...
How can the the physics of early cosmology (articles about which are where I usually come across mentions of such) be affected by an 'effective' number of neutrino types, rather ...
- 4,509
2
votes
2
answers
110
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Will a neutrino gas always stay at the same temperature?
Does the neutrino gas pervading the universe always have the same temperature? Does it still have the temperature as the neutrino gas that emerged from the big bang? Neutrinos don't interact, so how ...
6
votes
2
answers
903
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Has neutrino redshift been observed?
I understand that neutrinos are emitted when supernova explode. I presume that there are quite accurate models that predict the energies of those neutrinos at the time of emission.
Has the phenomenon ...
- 5,925