Work

Post-Newtonian dynamics of compact binaries with mass transfer

Year: 2025

Type: article

Abstract: Taking into account the mass transfer effect, we derive the equations of motion of a compact binary system at the second-half post-Newtonian order. Applying such equations of motion to quasi-circular orbits, we obtain the time derivative of the orbital frequency, which is consistent with the angular momentum balance equation. Numerical estimates of the phase of gravitational waves are provided for typical mass transfer rates. Our result can be used to improve the waveforms of gravitational waves emitted by compact binaries with mass transfer.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/qhf1-v5jr

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

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

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, China Postdoctoral Science Foundation, National Key Research and Development Program of China

Awards: G3266504514, G3289481219, G6009552194, G8844331171