Constraints on power spectrum of density fluctuations from PBH evaporations
classification
🌌 astro-ph
keywords
bumpconstraintsdensityfluctuationsneutrinophotonpowerprimordial
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We calculate neutrino and photon energy spectra in extragalactic space from evaporation of primordial black holes, assuming that the power spectrum of primordial density fluctuations has a strong bump in the region of small scales. The constraints on the parameters of this bump based on neutrino and photon cosmic background data are obtained.
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