Coherent Radiation in Gamma-Ray Bursts and Relativistic Collisionless Shocks

K. Ioka
2005 Progress of theoretical physics  
We suggest that coherent radiation may occur in relativistic collisionless shocks via two-stream Weibel instabilities. The coherence amplifies the radiation power by many orders [∼ 10^12 in Gamma-Ray Bursts (GRBs)] and particles cool very fast before being randomized. We imply (1) GRBs accompany strong infrared emission, (2) protons efficiently transfer energy to electrons and (3) prompt GRBs might be the upscattered coherent radiation.
doi:10.1143/ptp.114.1317 fatcat:cwjezee4rfeolnd77thkwko7y4