SIMBAD references

2021ApJ...922L...7B - Astrophys. J., 922, L7-L7 (2021/November-3)

Can a strong radio burst escape the magnetosphere of a magnetar?

BELOBORODOV A.M.

Abstract (from CDS):

We examine the possibility that fast radio bursts (FRBs) are emitted inside the magnetosphere of a magnetar. On its way out, the radio wave must interact with a low-density e± plasma in the outer magnetosphere at radii R = 109-1010 cm. In this region, the magnetospheric particles have a huge cross section for scattering the wave. As a result, the wave strongly interacts with the magnetosphere and compresses it, depositing the FRB energy into the compressed field and the scattered radiation. The scattered spectrum extends to the γ-ray band and triggers e± avalanche, further boosting the opacity. These processes choke FRBs, disfavoring scenarios with a radio source confined at R ≪ 1010 cm. Observed FRBs can be emitted by magnetospheric flare ejecta transporting energy to large radii.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Neutron stars - Radiative processes - Radio bursts - Magnetars

Simbad objects: 1

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