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Orbit-induced spin precession as an origin of periodicity in periodically-repeating fast radio bursts

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arxiv 2002.02553 v3 pith:A5PTAGW2 submitted 2020-02-06 astro-ph.HE gr-qc

Huan Yang , Yuan-Chuan Zou This is my paper · ORCID
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keywords binaryburstsfastorbit-inducedperiodperiodicityprecessionradio
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FRB 180916.J0158+65 has been found to repeatedly emit fast radio bursts with the period in roughly 16 days. We propose that such periodicity comes from orbit-induced, spin precession of the emitter, which is possibly a neutron star. Depending on the mass of the companion, the binary period ranges from several hundred to thousands of seconds. Such tight binaries have a relatively short lifetime, which does not likely come from the gravitational decay of a wide binary. We comment on the relation to GW190425 and the possibility in LISA and LIGO detections.

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  1. Revealing the internal magnetic field configuration of magnetars via their associated periodic signals

    astro-ph.HE 2025-01 conditional novelty 5.0 of 10

    Using observed precession periods and surface temperatures, the authors constrain the internal fields of four magnetars and two FRB hosts, finding toroidal field strengths of order 10^15 G and a toroidal distribution ...

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