Constraints on power spectrum of density fluctuations from PBH evaporations

Abstract

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.

6 pages, 4 figures

Cited by in corpus (2)

• Primordial black hole constraints with Hawking radiation -- a review
• Probability of primordial black hole formation and its dependence on the radial profile of initial configurations