Warm dark matter Dark matter

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warm dark matter refers particles fsl comparable size of protogalaxy. predictions based on warm dark matter similar cold dark matter on large scales, less small-scale density perturbations. reduces predicted abundance of dwarf galaxies , may lead lower density of dark matter in central parts of large galaxies; researchers consider better fit observations. challenge model lack of particle candidates required mass ~ 300 ev 3000 ev.


no known particles can categorized warm dark matter. postulated candidate sterile neutrino: heavier, slower form of neutrino not interact through weak force, unlike other neutrinos. modified gravity theories, such scalar-tensor-vector gravity, require warm dark matter make equations work.







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