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Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C.
Acciari, V A; Ansoldi, S; Antonelli, L A; Arbet Engels, A; Baack, D; Babic, A; Banerjee, B; Barres de Almeida, U; Barrio, J A; Becerra González, J; Bednarek, W; Bellizzi, L; Bernardini, E; Berti, A; Besenrieder, J; Bhattacharyya, W; Bigongiari, C; Biland, A; Blanch, O; Bonnoli, G; Bosnjak, Z; Busetto, G; Carosi, R; Ceribella, G; Cerruti, M; Chai, Y; Chilingarian, A; Cikota, S; Colak, S M; Colin, U; Colombo, E; Contreras, J L; Cortina, J; Covino, S; D'Amico, G; D'Elia, V; Da Vela, P; Dazzi, F; De Angelis, A; De Lotto, B; Delfino, M; Delgado, J; Depaoli, D; Di Pierro, F; Di Venere, L; Do Souto Espiñeira, E; Dominis Prester, D; Donini, A; Dorner, D; Doro, M.
Phys Rev Lett ; 125(2): 021301, 2020 Jul 10.
Article in English | MEDLINE | ID: mdl-32701326

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.

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