Power radiated by a binary system in a de Sitter universe

2017/08/18 by Béatrice Bonga, Jeffrey S. Hazboun · 18 citations
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #De Sitter space #De Sitter universe #Friedmann–Lemaître–Robertson–Walker metric #Gravitation #Gravitational wave #Mathematical physics #Metric expansion of space #Physics #Pulsars and Gravitational Waves Research #Quantum mechanics #Redshift #Spacetime #Theoretical physics #Universe #de Sitter invariant special relativity #de Sitter–Schwarzschild metric #gr-qc

paper · pdf · doi:10.1103/physrevd.96.064018

published in Physical review. D/Physical review. D. 96(6) (American Physical Society) · 15 pages, 4 figures, accepted for publication in PRD

arxiv created 2017/08/18 · openalex publication_date 2017/09/13 · arxiv updated 2017/10/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

Gravitational waves emitted by high redshift sources propagate through various epochs of the Universe including the current era of measurable, accelerated expansion. Historically, the calculation of gravitational wave power on cosmological backgrounds is based on various simplifications, including a 1/r-expansion and the use of an algebraic projection to retrieve the radiative degrees of freedom. On a de Sitter spacetime, recent work has demonstrated that many of these calculational techniques and approximations do not apply. Here we calculate the power emitted by a binary system on a de Sitter background using techniques tailored to de Sitter spacetime. The common expression for the power radiated by this source in an Friedmann-Lema\^\itre-Robertson-Walker spacetime, calculated using far wave-zone techniques, gives the same expression as the late time expansion specialized to the de Sitter background in the high-frequency approximation.

Citations

• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Gravitational waves in general relativity, VII. Waves from axi-symmetric isolated system
• Discovery of a pulsar in a binary system
• Gravitational Radiation Reaction and Inspiral Waveforms in the Adiabatic Limit
• Gravitational waves in general relativity VIII. Waves in asymptotically flat space-time
• A new test of general relativity - Gravitational radiation and the binary pulsar PSR 1913+16
• Gravitational and Electromagnetic Fields near a de Sitter–Like Infinity
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Gravitational Radiation from Point Masses in a Keplerian Orbit
• New symbolic tools for differential geometry, gravitation, and field theory
• Asymptotics with a positive cosmological constant. III. The quadrupole formula
• Planck2013 results. XVI. Cosmological parameters
• Observation of Gravitational Waves from a Binary Black Hole Merger
• Cosmological memory effect
• GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2

Cited by

• Quadrupolar power radiation by a binary system in de Sitter background