Primordial Black Holes as Dark Matter: The Power Spectrum and Evaporation of Early Structures

Details Primordial Black Holes as Dark Matter: The Power Spectrum and Evaporation of Early Structures Primordial Black Holes as Dark Matter: The Power Spectrum and Evaporation of Early Structures

2003-02-03

arxiv.org/abs/astro-ph/0302035v1

Astrophys.J. 594 (2003) L71-L74

Astronomy and Astrophysics

Astrophysics

Submitted to ApJL, 4 pages, 3 figures

Scientific paper

10.1086/378763

We consider the possibility that massive primordial black holes are the dominant form of dark matter. Black hole formation generates entropy fluctuations that adds a Poisson noise to the matter power spectrum. We use Lyman-alpha forest observations to constrain this Poisson term in matter power spectrum, then we constrain the mass of black holes to be less than few times 10^4 solar mass. We also find that structures with less than ~ 10^3 primordial black holes evaporate by now.

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