Precession and Jitter in FRB 180916B

Abstract

Recent CHIME/FRB observations of the periodic repeating FRB 180916B have produced a homogeneous sample of 44 bursts. These permit a redetermination of the modulation period and phase window, in agreement with earlier results. If the periodicity results from the precession of an accretion disc, in analogy with those of Her X-1, SS 433, and many other superorbital periods, the width of the observable phase window indicates that the disc axis jitters by an angle of about 0.14 of the inclination angle, similar to the ratio of 0.14 in the well-observed jittering jet source SS 433.

3 pp., 3 figs Minor changes and added and corrected references

References in corpus (5)

• Possible periodic activity in the repeating FRB 121102
• LOFAR Detection of 110-188 MHz Emission and Frequency-Dependent Activity from FRB 20180916B
• FRB as Products of Accretion Disc Funnels
• Are Fast Radio Bursts Made By Neutron Stars?
• A FRB in a Globular Cluster: Why Is This Neutron Star Different From (Almost) All Other Neutron Stars?

Cited by in corpus (6)

• The Physics of Fast Radio Bursts
• High frequency study of FRB 20180916B using the 100-m Effelsberg radio telescope
• Axion-mediated Transport of Fast Radio Bursts Originating in Inner Magnetospheres of Magnetars
• A Thorough Search for Short Timescale Periodicity in Four Active Repeating Fast Radio Bursts
• Periodic Activities of Fast Radio Burst Repeaters from Precessing Magnetars with Evolving Obliquity
• Symmetry Breaking in Repeating Fast Radio Bursts