Evolutions of "puncture" binary black holes using Carpet mesh refinement

	Coordinate shapes of the black-hole apparent horizon at different times during the evolution.

In this paper [1], we performed an evolution of an equal mass binary black hole system, for more than one and a half orbits. Evolutions were carried out in a co-rotating frame, using mesh refinement to attain the required high resolutions of the simulations. For the first time, this system could be followed through the merger, to obtain an accurate determination of the physical parameters of the resulting oscillating black hole, as well as the period of the final orbit (59MADM). Importantly, the results were found to be consistent and convergent independent of parameter choices, providing strong evidence of the accuracy of our numerical methods.

Bibliography

[1] P. Diener, F. Herrmann, D. Pollney et al., Accurate Evolution of Orbiting Binary Black Holes, PRL 96(12), 121101 (2006)

Further Reading on the Web