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Periodic Fast Radio Bursts with Neutron Star Free/Radiative Precession

Published 13 Feb 2020 in astro-ph.HE | (2002.05752v2)

Abstract: The CHIME/FRB collaboration recently reported the detection of a 16 day periodicity in the arrival times of radio bursts from FRB 180916.J0158+65. We study the possibility that the observed periodicity arises from free precession of a magnetized neutron star, and put constraints on different components of the star's magnetic fields. Using a simple geometric model, where radio bursts are emitted from a rotating neutron star magnetosphere, we show that the emission pattern as a function of time can match that observed from FRB 180916.J0158+65.

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Authors (2)

  1. J. J. Zanazzi 
  2. Dong Lai 

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