Issue
EPL
Volume 78, Number 6, June 2007
Article Number 60005
Number of page(s) 6
Section General
DOI http://dx.doi.org/10.1209/0295-5075/78/60005
Published online 29 May 2007
EPL, 78 (2007) 60005
DOI: 10.1209/0295-5075/78/60005

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

L. M. Burko1 and G. Khanna2

1  Department of Physics and Center for Space Plasma and Aeronomic Research, University of Alabama in Huntsville Huntsville, AL 35899, USA
2  University of Massachusetts at Dartmouth - N. Dartmouth, MA 02747, USA


received 13 February 2007; accepted in final form 4 May 2007; published June 2007
published online 29 May 2007

Abstract
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 may 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.

PACS
04.30.Db - Wave generation and sources.
04.25.-g - Approximation methods; equations of motion.
04.70.-s - Physics of black holes.

© Europhysics Letters Association 2007