Accurate time-domain gravitational waveforms for extreme-mass-ratio binaries

Details Accurate time-domain gravitational waveforms for extreme-mass-ratio binaries Accurate time-domain gravitational waveforms for extreme-mass-ratio binaries

2006-08-31

arxiv.org/abs/gr-qc/0609002v2

Europhys.Lett.78:60005,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, 9 figures, 2 tables; Changes: some errors corrected. Comparison with Frequency-domain now done in stronger field

Scientific paper

10.1209/0295-5075/78/60005

The accuracy of time-domain solutions of the inhomogeneous Teukolsky equation is improved significantly. Comparing energy fluxes in gravitational waves with highly accurate frequency-domain results for circular equatorial orbits in Schwarzschild and Kerr, we find agreement to within 1% or better, which we believe can be even further improved. We apply our method to orbits for which frequency-domain calculations have a relative disadvantage, specifically high-eccentricity (elliptical and parabolic) "zoom-whirl" orbits, and find the energy fluxes, waveforms, and characteristic strain in gravitational waves.

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