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Light speed variation from gamma ray burst GRB 160509A

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arxiv 1607.08043 v1 pith:VBFK34EQ submitted 2016-07-27 hep-ph astro-ph.HEgr-qc

classification hep-phastro-ph.HEgr-qc
keywords speedlightburstcosmologicalgammavariationamplifiedastrophysical
verification ladder T0 review T1 audit T2 compute T3 formal

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It is postulated in Einstein's relativity that the speed of light in vacuum is a constant for all observers. However, the effect of quantum gravity could bring an energy dependence of light speed. Even a tiny speed variation, when amplified by the cosmological distance, may be revealed by the observed time lags between photons with different energies from astrophysical sources. From the newly detected long gamma ray burst GRB~160509A, we find evidence to support the prediction for a linear form modification of light speed in cosmological space.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. New analysis of SNeIa Pantheon Catalog: Variable speed of light as an alternative to dark energy

    astro-ph.CO 2024-12 reject novelty 6.0 of 10

    A variable-speed-of-light model with a modified Lemaître redshift formula fits the Pantheon supernova catalog with H0 ≈ 47 and no dark energy.

  2. Monte Carlo simulation of GRB data to test Lorentz-invariance violation

    hep-ph 2025-04 conditional novelty 5.0 of 10

    A combined model with both Lorentz-violation and energy-dependent intrinsic delays recovers simulated parameters across all mock datasets and fits multi-GeV and TeV GRB photons, yielding a subluminal LV scale of about...

  3. Examining Lorentz invariance violation with three remarkable GRB photons

    astro-ph.HE 2025-04 conditional novelty 4.0 of 10

    Adding three extreme GRB photons preserves the fitted Lorentz-violation scale E_LV ~ 3e17 GeV, but only when an energy-dependent intrinsic delay term, itself a fitting construct, absorbs the new TeV photons.

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