Pair-beam propagation in a magnetised plasma for modelling the polarized radiation emission from gamma-ray bursts in laboratory astrophysics experiments

Abstract

The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Special emphasis is laid on investigating the polarization of the generated radiation for a range of beam-plasma parameters, transverse and longitudinal beam sizes, and the external magnetic fields. Our results not only help in understanding the high degrees of circular polarization observed in gamma-rays bursts but they also help in distinguishing the different modes associated with the filamentation dynamics of the pair-beam in laboratory astrophysics experiments.

References in corpus (5)

• Particle acceleration in relativistic collisionless shocks: Fermi process at last?
• Bulk Lorentz factors of Gamma-Ray Bursts
• Circular polarization in the optical afterglow of GRB 121024A
• Constraints on the bulk Lorentz factor of Gamma-Ray Burst jets from Fermi/LAT upper limits
• Polarized light from the transportation of a matter-antimatter beam in a plasma