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Inspiral waveforms of charged compact binaries and observational constraints
Abstract
Electric charges carried by compact objects can affect binary dynamics and imprint characteristic signatures on gravitational-wave signals. We derive next-to-leading-order post-Newtonian frequency-domain waveforms for charged compact binaries in both the gravitational-quadrupole and electric-dipole dominated regimes, including electromagnetic corrections beyond leading-order electric-dipole radiation that reduce the degeneracy between the component charge-to-mass ratios. Using gravitational wave events from GWTC-5.0, we place constraints on the charge-to-mass ratio and mass of each component of the binary system.
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BibTeX
@misc{zhang2026inspiral,
title = {{Inspiral waveforms of charged compact binaries and observational constraints}},
author = {Zi-Han Zhang and Wen-Hong Ruan and Tan Liu and Zong-Kuan Guo},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.15119},
eprint = {2609.15119},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.15119},
}
RIS
TY - UNPB
TI - Inspiral waveforms of charged compact binaries and observational constraints
AU - Zi-Han Zhang
AU - Wen-Hong Ruan
AU - Tan Liu
AU - Zong-Kuan Guo
PY - 2026
DA - 2026/09/16
PB - arXiv
DO - 10.48550/arxiv.2609.15119
UR - https://arxiv.org/abs/2609.15119
AB - Electric charges carried by compact objects can affect binary dynamics and imprint characteristic signatures on gravitational-wave signals. We derive next-to-leading-order post-Newtonian frequency-domain waveforms for charged compact binaries in both the gravitational-quadrupole and electric-dipole dominated regimes, including electromagnetic corrections beyond leading-order electric-dipole radiation that reduce the degeneracy between the component charge-to-mass ratios. Using gravitational wave events from GWTC-5.0, we place constraints on the charge-to-mass ratio and mass of each component of the binary system.
ER -