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Preliminary Results of Analysis of Properties of Long Gamma-Ray Bursts with High-Energy Components: The Inhomogeneity of Their Source Populations

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Sources of gamma-ray bursts (GRBs) are detected at a high redshift z, testifying to their cosmological origin and thus requiring allowance for cosmological dilation in analyzing the distribution of their durations. New parameter Rt, the ratio of the arrival time of a maximum-energy photon to the duration of a burst, is introduced. The new parameter allows cosmological dilation to be ignored and at least two groups of long GRBs to be distinguished. Differences in the dynamics of the formation of high-energy γ-radiation for these groups demonstrates the inhomogeneity of their source populations.

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Funding

Authors thank for the support from National Research Nuclear University MEPhI in the framework of the Russian Academic Excellence Project (contract no. 02.a03.21.0005, August 27, 2013).

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Authors and Affiliations

  1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Moscow, Russia

    I. V. Arkhangelskaja

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  1. I. V. Arkhangelskaja
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Correspondence to I. V. Arkhangelskaja.

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Translated by M. Potapov

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Arkhangelskaja, I.V. Preliminary Results of Analysis of Properties of Long Gamma-Ray Bursts with High-Energy Components: The Inhomogeneity of Their Source Populations. Bull. Russ. Acad. Sci. Phys. 85, 461–463 (2021). https://doi.org/10.3103/S1062873821040055

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  • DOI: https://doi.org/10.3103/S1062873821040055

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