• Featured in Physics

Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C

V. A. Acciari et al. (MAGIC Collaboration)
Phys. Rev. Lett. 125, 021301 – Published 9 July 2020
Physics logo See synopsis: Gamma Rays Provide New Quantum Gravity Constraint
PDFHTMLExport Citation

Abstract

On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification.

  • Figure
  • Figure
  • Figure
  • Received 28 January 2020
  • Revised 20 April 2020
  • Accepted 4 June 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.021301

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

synopsis

Key Image

Gamma Rays Provide New Quantum Gravity Constraint

Published 9 July 2020

An analysis of the speed of the most energetic photons ever observed from a gamma-ray burst sets new constraints on certain theories of quantum gravity.

See more in Physics

Authors & Affiliations

Click to Expand

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 125, Iss. 2 — 10 July 2020

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×