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Physical Review D 83 (2011) 121301
Constraints on Lorentz Invariance Violation using integral/IBIS observations of GRB041219A
P. Laurent1, 2, D. Götz2, 3, P. Binétruy1, S. Covino4, A. Fernandez-Soto5
For the INTEGRAL collaboration(s)
(2011-06)

One of the experimental tests of Lorentz invariance violation is to measure the helicity dependence of the propagation velocity of photons originating in distant cosmological obejcts. Using a recent determination of the distance of the gamma-ray burst GRB 041219A, for which a high degree of polarization is observed in the prompt emission, we are able to improve by four orders of magnitude the existing constraint on Lorentz invariance violation, arising from the phenomenon of vacuum birefringence.
1:  APC - UMR 7164 - AstroParticule et Cosmologie
2:  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
3:  AIM - UMR 7158 - Astrophysique Interactions Multi-échelles
4:  OAB - Osservatorio Astronomico di Brera
5:  CSIC - Spanish National Research Council
APC - AHE
APC - THEORIE
Physics/General Relativity and Quantum Cosmology

Sciences of the Universe/Astrophysics/High Energy Astrophysical Phenomena

Physics/Astrophysics/High Energy Astrophysical Phenomena
gamma-ray sources – gamma-ray bursts – Lorentz and Poincare invariance – Relativity and gravitation – X- and gamma-ray telescopes and instrumentation
Fulltext link: 
http://fr.arXiv.org/abs/1106.1068