Limits to Quantum Gravity Effects from Observations of TeV Flares in Active Galaxies
S. D. Biller, A. C. Breslin, J. Buckley, M. Catanese, M. Carson, D. A. Carter-Lewis, M. F. Cawley, D. J. Fegan, J. Finley, J. A. Gaidos, A. M. Hillas, F. Krennrich, R. C. Lamb, R. Lessard, C. Masterson, J. E. McEnery, B. McKernan, P. Moriarty, J. Quinn, H. J. Rose, F. Samuelson, G. Sembroski, P. Skelton, T. C. Weekes
Abstract
We have used data from the TeV gamma-ray flare associated with the active galaxy Markarian 421 observed on 15 May 1996 to place bounds on the possible energy-dependence of the speed of light in the context of an effective quantum gravitational energy scale. The possibility of an observable time dispersion in high energy radiation has recently received attention in the literature, with some suggestions that the relevant energy scale could be less than the Planck mass and perhaps as low as 1016 GeV. The limits derived here indicate this energy scale to be in excess of 4x1016 GeV at the 95% confidence level. To the best of our knowledge, this constitutes the first convincing limit on such phenomena in this energy regime.
Create a lesson
Related papers
Emergent vacua and stability constraints on black hole solutions in higher-dimensional f(R) gravity
Nicolás Trullols Sandino, Andrei Galiautdinov
Electric and magnetic Penrose processes, charged-particle collisions and superradiance around a Lorentz-violating dyonic black hole
Fernando M. Belchior, Edilberto O. Silva
Conformal Cyclic Cosmology from Varying Fundamental Constants
Konrad Marosek, Adam Balcerzak
Perturbations of black holes with primary hair: time evolutions, quasinormal modes and greybody factors
Georgios Antoniou
Gravitational Lensing of Hayward Black Holes with EFT-Corrected Photon Propagation
Takamasa Kanai
Near-Horizon BMS Symmetry and Implications on Black Hole Entropy
Nihar Ranjan Ghosh, Malay K. Nandy