Regularity of high energy photon events from gamma ray bursts

  title={Regularity of high energy photon events from gamma ray bursts},
  author={Hao Xu and Bo Qiang Ma},
  journal={arXiv: General Relativity and Quantum Cosmology},
  • Hao Xu, B. Ma
  • Published 24 January 2018
  • Physics
  • arXiv: General Relativity and Quantum Cosmology
The effect of Quantum Gravity (QG) may bring a tiny light speed variation as $v(E)=c(1-E/E_{\rm LV})$, where $E$ is the photon energy and $E_{\rm LV}$ is a Lorentz violation scale. A remarkable regularity was suggested in previous studies to look for the light speed variation from high energy photon events of Gamma Ray Bursts (GRBs). We provide a general analysis on the data of 25 bright GRBs observed by the Fermi Gamma-ray Space Telescope (FGST). Such method allows a completed scan over all… 

Figures and Tables from this paper

Robust constraint on Lorentz violation using Fermi-LAT gamma-ray burst data
Models of quantum gravity suggest that the vacuum should be regarded as a medium with quantum structure that may have non-trivial effects on photon propagation, including the violation of Lorentz
Light speed variation from active galactic nuclei
Recent studies on the high-energy photons from gamma-ray bursts~(GRBs) suggested a light speed variation $v(E)=c(1-E/E_{\mathrm{LV}})$ with $E_\mathrm{LV}=3.6\times 10^{17}$ GeV. We check this speed
Ultrahigh-energy photons from LHAASO as probes of Lorentz symmetry violations
The Large High Altitude Air Shower Observatory (LHAASO) is one of the most sensitive gammaray detector arrays currently operating at TeV and PeV energies. Recently the LHAASO experiment detected
Constraints on quantum gravity and the photon mass from gamma ray bursts
Lorentz Invariance Violation in Quantum Gravity (QG) models or a non-zero photon mass, mγ , would lead to an energy-dependent propagation speed for photons, such that photons of different energies
Light speed variation with brane/string-inspired space-time foam
Abstract Recently a series of studies on high energy gamma-ray burst (GRB) photons suggested a light speed variation with linear energy dependence at the Lorentz violation scale of 3 . 6 × 1 0 17 GeV
Novel pre-burst stage of gamma-ray bursts from machine learning
Gamma-ray bursts (GRBs), as extremely energetic explosions in the universe, are widely believed to consist of two stages: the prompt phase and the subsequent afterglow. Recent studies indicate that
Lorentz violation from gamma-ray burst neutrinos
The Lorentz violation (LV) effect of ultra-relativistic particles can be tested by gamma-ray burst (GRB) neutrinos and photons. The IceCube Collaboration has observed plenty of ultra-high energy
Light speed variation from gamma ray bursts: criteria for low energy photons
We examine a method to detect the light speed variation from gamma ray burst data observed by the Fermi Gamma-ray Space Telescope (FGST). We suggest new criteria to determine the characteristic time
Testing Lorentz invariance andCPTsymmetry using gamma-ray burst neutrinos
A recent work [Y. Huang and B.-Q. Ma, Commun. Phys. {\bf 1}, 62 (2018)] associated all four PeV neutrinos observed by IceCube to gamma-ray bursts (GRBs), and revealed a regularity which indicates a
Consistent Lorentz violation features from near-TeV IceCube neutrinos
A recent proposal to associate 60~TeV to 2~PeV IceCube neutrino events with gamma-ray bursts~(GRBs) indicates the Lorentz violation of cosmic neutrinos and leads further to the $CPT$ symmetry


Light speed variation from gamma-ray bursts
Abstract The effect of quantum gravity can bring a tiny light speed variation which is detectable through energetic photons propagating from gamma ray bursts (GRBs) to an observer such as the space
Robust Limits on Lorentz Violation from Gamma-Ray Bursts
We constrain the possibility of a non-trivial refractive index in free space corresponding to an energy-dependent velocity of light: c(E) ≃ c0(1 − E/M), where M is a mass scale that might represent
Lorentz violation from cosmological objects with very high energy photon emissions
Abstract Lorentz violation (LV) is predicted by some quantum gravity theories, where photon dispersion relation is modified, and the speed of light becomes energy-dependent. Consequently, it results
Quantum-gravity analysis of gamma-ray bursts using wavelets
In some models of quantum gravity, space-time is thought to have a foamy structure with non-trivial optical prop- erties. We probe the possibility that photons propagating in vacuum may exhibit a
Constraints on Lorentz Invariance Violation from Fermi -Large Area Telescope Observations of Gamma-Ray Bursts
We analyze the MeV/GeV emission from four bright gamma-ray bursts (GRBs) observed by the Fermi Large Area Telescope to produce robust, stringent constraints on a dependence of the speed of light in
An Algorithm for Detecting Quantum Gravity Photon Dispersion in Gamma-Ray Bursts: DisCan
DisCan is a new algorithm implementing photon dispersion cancellation in order to measure energy-dependent delays in variable sources. This method finds the amount of reversed dispersion that
A limit on the variation of the speed of light arising from quantum gravity effects
The detection of emission up to ∼31 GeV from the distant and short GRB, and no evidence for the violation of Lorentz invariance is found, which disfavour quantum-gravity theories in which the quantum nature of space–time on a very small scale linearly alters the speed of light.
Tests of quantum gravity from observations of γ-ray bursts
The recent confirmation that at least some γ-ray bursts originate at cosmological distances suggests that the radiation from them could be used to probe some of the fundamental laws of physics. Here
Lorentz violation from gamma-ray bursts
The constancy of light speed is a basic assumption in Einstein’s special relativity, and consequently the Lorentz invariance is a fundamental symmetry of space–time in modern physics. However, it is
Light speed variation from gamma ray burst GRB 160509A
Abstract 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