Abstract
We obtained an order-of-magnitude estimate for the dispersion of light caused by the effect of quantum fluctuations on the propagation of electromagnetic waves in four-dimensional spacetime. We calculated the delay of the photons from cosmological gamma-ray bursts (GRBs) for the flat, open, and closed cosmological models. This delay is attributable to the effect of expansion of the Universe on the propagation of a dispersive light wave in space. Analysis shows that the delay of GRB photons contains a regular component related to the expansion of the Universe. We conclude that cosmological models of the Universe can be selected by the delay of emission of various energies from GRBs; the accuracy of measuring the parameter Δt/ΔE γ must be no lower than 10−6 s MeV−1.
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Translated from Pis'ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 29, No. 2, 2003, pp. 83–87.
Original Russian Text Copyright © 2003 by Vertogradova, Grishkan, Petkov.
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Vertogradova, E.G., Grishkan, Y.S. & Petkov, V.B. Delay of emission from extragalactic gamma-ray burst sources as a test for selecting a model of the universe. Astron. Lett. 29, 65–69 (2003). https://doi.org/10.1134/1.1544527
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DOI: https://doi.org/10.1134/1.1544527