http://arxiv.org/abs/2002.05752
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 the rotating magnetosphere of a precessing magnetar, we show that the emission pattern as a function of time can match that observed from FRB 180916.J0158+65.
J. Zanazzi and D. Lai
Mon, 17 Feb 20
35/53
Comments: 7 pages, 6 figures, submitted to ApJL
You must be logged in to post a comment.