Can a Strong Radio Burst Escape the Magnetosphere of a Magnetar?

Abstract We examine the possibility that fast radio bursts (FRBs) are emitted inside magnetosphere of a magnetar. On its way out, wave must interact with low-density e ± plasma in outer at radii R = 10 9 –10 cm. In this region, magnetospheric particles have huge cross section for scattering wave. As result, strongly interacts and compresses it, depositing FRB energy into compressed field scattered radiation. The spectrum extends to γ -ray band triggers avalanche, further boosting opacity. These processes choke FRBs, disfavoring scenarios source confined ≪ Observed FRBs can be by flare ejecta transporting large radii.