• DOI:10.1103/PhysRevLett.96.111101
• Corpus ID: 5954627

Accurate evolutions of orbiting black-hole binaries without excision.

@article{Campanelli2006AccurateEO,
  title={Accurate evolutions of orbiting black-hole binaries without excision.},
  author={Manuela Campanelli and Carlos O. Lousto and Pedro Marronetti and Yosef Zlochower},
  journal={Physical review letters},
  year={2006},
  volume={96 11},
  pages={
          111101
        }
}

• M. Campanelli, C. Lousto, +1 author Y. Zlochower
• Published 9 November 2005
• Physics
• Physical review letters

We present a new algorithm for evolving orbiting black-hole binaries that does not require excision or a corotating shift. Our algorithm is based on a novel technique to handle the singular puncture conformal factor. This system, based on the Baumgarte-Shapiro-Shibata-Nakamura formulation of Einstein's equations, when used with a "precollapsed" initial lapse, is nonsingular at the start of the evolution and remains nonsingular and stable provided that a good choice is made for the gauge. As a test case, we use this technique to fully evolve orbiting black-hole binaries from near the innermost stable circular orbit regime. We show fourth-order convergence of waveforms and compute the radiated gravitational energy and angular momentum from the plunge. These results are in good agreement with those predicted by the Lazarus approach.