Work

Third post-Newtonian gravitational waveforms for compact binary systems in general orbits: Instantaneous terms

Year: 2015

Type: article

Abstract: We compute the instantaneous contributions to the spherical harmonic modes of gravitational waveforms from compact binary systems in general orbits up to the third post-Newtonian (PN) order. We further extend these results for compact binaries in quasielliptical orbits using the 3PN quasi-Keplerian representation of the conserved dynamics of compact binaries in eccentric orbits. Using the multipolar post-Minkowskian formalism, starting from the different mass and current-type multipole moments, we compute the spin-weighted spherical harmonic decomposition of the instantaneous part of the gravitational waveform. These are terms which are functions of the retarded time and do not depend on the history of the binary evolution. Together with the hereditary part, which depends on the binary's dynamical history, these waveforms form the basis for construction of accurate templates for the detection of gravitational wave signals from binaries moving in quasielliptical orbits.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.91.084040

Authors: Chandra Kant Mishra, K. G. Arun, Bala R. Iyer

Institutions: Tata Institute of Fundamental Research, Raman Research Institute, International Centre for Theoretical Sciences, Indian Institute of Science Bangalore, Chennai Mathematical Institute

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Infosys Foundation

OpenAlex ID: W2083106201

FWCI: 1.895

Cites: 82

Cited by: 72

Related to: 10