http://arxiv.org/abs/2004.13600
We perform numerical simulations of the dynamics of magnetized and highly relativistic pulsar-like winds produced by long-lasting central engines in Gamma Ray Bursters (GRB). The very fast wind interacts with the initial relativistically expanding GRB outflow, creating a multiple-shock structure. Depending on the parameters of the model (the energy of the initial explosion, the outside density, the wind power, the delay time for the switch-on of the wind, and the magnetization of the wind) a variety of temporal behaviors can be produced. In certain regimes the dynamics of such secondary engine-driven shocks is self-similar.
M. Barkov and M. Lyutikov
Wed, 29 Apr 20
12/75
Comments: N/A