Work

Inspiral waveforms of charged compact binaries and observational constraints

Year: 2026

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.15119

Authors: Zhang, Zi-Han, Ruan, Wen-Hong, Liu, Tan, Guo, Zong-Kuan

Institutions: International Centre for Theoretical Physics Asia-Pacific, University of Chinese Academy of Sciences, Hunan Normal University

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Yangtze University

Awards: G3266504514, G6009552194

OpenAlex ID: W7213358452

Cites: 9

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Related to: 10