Version 1
: Received: 19 September 2024 / Approved: 20 September 2024 / Online: 20 September 2024 (07:10:21 CEST)
How to cite:
Wei, J.-J. New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts. Preprints2024, 2024091597. https://doi.org/10.20944/preprints202409.1597.v1
Wei, J.-J. New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts. Preprints 2024, 2024091597. https://doi.org/10.20944/preprints202409.1597.v1
Wei, J.-J. New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts. Preprints2024, 2024091597. https://doi.org/10.20944/preprints202409.1597.v1
APA Style
Wei, J. J. (2024). New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts. Preprints. https://doi.org/10.20944/preprints202409.1597.v1
Chicago/Turabian Style
Wei, J. 2024 "New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts" Preprints. https://doi.org/10.20944/preprints202409.1597.v1
Abstract
One of the manifestations of Lorentz invariance violation (LIV) is vacuum birefringence, which leads to an energy-dependent rotation of the polarization plane of linearly polarized photons arising from an astrophysical source. Here we use the energy-resolved polarization measurements in the prompt $\gamma$-ray emission of five bright gamma-ray bursts (GRBs) to constrain this vacuum birefringent effect. Our results show that at the 95\% confidence level, the birefringent parameter $\eta$ characterizing the broken degree of Lorentz invariance can be constrained to be $|\eta|<\mathcal{O}(10^{-15}-10^{-16})$, which represent an improvement of at least eight orders of magnitude over existing limits from multi-band optical polarization observations. Moreover, our constraints are competitive with previous best bounds from the single $\gamma$-ray polarimetry of other GRBs. We emphasize that, thanks to the adoption of the energy-resolved polarimetric data set, our results on $\eta$ are statistically more robust. Future polarization measurements of GRBs at higher energies and larger distances would further improve LIV limits through the birefringent effect.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
