Search for Coincident Gravitational Wave and Fast Radio Burst Events from 4-OGC and the First CHIME/FRB Catalog

Wang, Yi-Fan; Nitz, Alexander H.

doi:10.48550/arxiv.2203.17222

Cited by 1 publication

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The valid association requires the false alarm rate to be much smaller than the expected signal rate. Such a question has been discussed in [74,75] for current gravitational wave events and also in Sec. V. In this work, we focus primarily on the repeater scenario, assuming a series of FRB bursts are observed during the year-long observation period.…”

Section: Binary Spin Dynamics and Frb Timingmentioning

confidence: 95%

Repeating Fast Radio Bursts from Neutron Star Binaries: Multi-band and Multi-messenger Opportunities

Zhang¹,

Yang²,

Yagi³

2022

Preprint

View full text Add to dashboard Cite

Recent observations indicate that magnetars commonly reside in merging compact binaries and at least part of fast radio bursts (FRBs) are sourced by magnetar activities. It is natural to speculate that a class of merging neutron star binaries may have FRB emitters. In this work, we study the observational aspects of these binaries -particularly those with FRB repeaters, which are promising multi-band and multi-messenger observation targets of radio telescopes and ground based gravitational wave detectors as the former telescopes can probe the systems at a much earlier stage in the inspiral than the latter. We show that observations of FRB repeaters in compact binaries have a significant advantage in pinning down the binary spin dynamics, constraining neutron star equation of state, probing FRB production mechanisms, and testing beyond standard physics. As a proof of principle, we investigate several mock observations of FRB pulses originating from pre-merger neutron star binaries, and we find that using the information of FRB arriving times alone, the intrinsic parameters of this system (including the stellar masses, spins, and quadrupole moments) can be measured with high precision, and the angular dependence of the FRB emission pattern can also be well reconstructed. The measurement of stellar masses (with an error of O(10 −6 − 10 −5 )) and quadrupole moments (with an error of O(1% − 10%)) may be an unprecedented discriminator of nuclear equations of state in neutron stars. In addition, we find the multi-band and multi-messenger observations of this binary will be sensitive to alternative theories of gravity and beyond standard models, e.g., dynamical Chern-Simons gravity and axion field that is coupled to matter. For example, we find that the effect of gravitational parity violation can be probed much more accurately than existing observations/experiments by combining FRB observations with either gravitational observations or X-ray observations and applying universal relations for neutron stars that do not depend sensitively on the equations of state.

show abstract

Section: Binary Spin Dynamics and Frb Timingmentioning

confidence: 95%