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No Observational Constraints from Hypothetical Collisions of Hypothetical Dark Halo Primordial Black Holes with Galactic Objects

Journal article
Authors Marek A Abramowicz
Julia K. Becker
Peter L. Biermann
Antonella Garzilli
Fredrik Johansson
Lei Qian
Published in Astrophysical Journal
Volume 705
Issue 1
Pages 659-669
ISSN 0004-637X
Publication year 2009
Published at Department of Physics (GU)
Pages 659-669
Language en
Links dx.doi.org/10.1088/0004-637X/705/1/...
Keywords dark matter, early universe, Galaxy: abundances, gamma rays: bursts, X-rays: bursts
Subject categories Physical Sciences

Abstract

It was suggested by several authors that hypothetical primordial black holes (PBHs) may contribute to the dark matter (DM) in our Galaxy. There are strong constraints based on the Hawking evaporation that practically exclude PBHs with masses m pbh ~ 1015to1016 g and smaller as significant contributors to the Galactic DM. Similarly, PBHs with masses greater than about 1026 g are practically excluded by the gravitational lensing observation. The mass range between 1016 g

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