Efficient acceleration and radiation in Poynting flux powered GRB outflows
Efficient acceleration and radiation in Poynting flux powered GRB outflows
We investigate the effects of magnetic energy release by local magnetic dissipation processes in Poynting flux-powered GRBs. For typical GRB parameters (energy and baryon loading) the dissipation takes place mainly outside the photosphere, producing non-thermal radiation. This process converts the total burst energy into prompt radiation at an efficiency of …