Constraints on power spectrum of density fluctuations from PBH evaporations

Details Constraints on power spectrum of density fluctuations from PBH evaporations Constraints on power spectrum of density fluctuations from PBH evaporations

2006-12-21

arxiv.org/abs/astro-ph/0612659v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures

Scientific paper

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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