Primordial Black Holes as Dark Matter: The Power Spectrum and Evaporation of Early Structures
- 14 August 2003
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 594 (2) , L71-L74
- https://doi.org/10.1086/378763
Abstract
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.Comment: Submitted to ApJL, 4 pages, 3 figureKeywords
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