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Astron. Astrophys. 353, L18-L20 (2000)

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Letter to the Editor

Are bright gamma-ray bursts a fair sample?

J-L. Atteia

Centre d'Etude Spatiale des Rayonnements, CNRS/UPS, B.P. 4346, 31028 Toulouse Cedex 4, France (atteia@cesr.fr)

Received 19 October 1999 / Accepted 29 November 1999

Abstract

We conjecture that bright gamma-ray bursts (GRBs) are bright because they come from sources which are intrinsically over luminous and not because they come from nearby sources. We show that this hypothesis is supported by theoretical and observational arguments and that it explains some well-known properties of GRBs such as their Hardness-Intensity Correlation or the No-Host problem. We discuss the consequences of this hypothesis on our understanding of the properties of the GRB population.

Key words: gamma rays: bursts

SIMBAD Objects

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© European Southern Observatory (ESO) 2000

Online publication: December 17, 1999
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