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arXiv 2609.15119gr-qc

带电致密双星的吸气波形与观测约束

Inspiral waveforms of charged compact binaries and observational constraints

  • University of Chinese Academy of Sciences(中国科学院大学)
  • Taiji Laboratory for GW Universe, University of Chinese Academy of Sciences(中国科学院大学太极引力波宇宙实验室)
  • Hunan Normal University(湖南师范大学)
  • Yangtze University(长江大学)

机构由 AI 辅助整理,请以论文原文为准。

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

AI总结:

本文推导了带电致密双星次领头阶后牛顿频域波形,包含电磁修正以减小简并性,并利用GWTC-5.0事件对分量电荷质量比和质量施加观测约束。

AI中文摘要:

致密天体携带的电荷会影响双星动力学,并在引力波信号上留下特征性印记。我们推导了带电致密双星在引力四极矩主导和电偶极矩主导两种情形下的次领头阶后牛顿频域波形,其中包含了超出领头阶电偶极辐射的电磁修正,这些修正减小了分量电荷质量比之间的简并性。利用GWTC-5.0中的事件,我们对双星系统中每个分量的电荷质量比和质量施加了约束。

英文摘要:

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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