Constraints on the Number Density of Evaporating Primordial Black Holes for the Chromospheric Evaporation Models

Details Constraints on the Number Density of Evaporating Primordial Black Holes for the Chromospheric Evaporation Models Constraints on the Number Density of Evaporating Primordial Black Holes for the Chromospheric Evaporation Models

2008-03-15

arxiv.org/abs/0803.2313v1

JETP Lett.87:1-3,2008; Pisma Zh.Eksp.Teor.Fiz.87:3-6,2008

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures

Scientific paper

10.1007/s11448-008-1001-0

Cosmic gamma-ray bursts with primary-photon energies > 10 GeV are sought in the data from the Andyrchy array obtained in the mode of detection of a single cosmic-ray component during a net observation period of 2005.4 d. The distribution of fluctuations of the detector counting rate agrees with the expected cosmic-ray background, the only exception being an event with a deviation of 7.9 sigma. Constraints on the number density of evaporating primordial black holes in a local region of the Galaxy are obtained for the chromospheric evaporation models.

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