Document Type
Article
Publication Date
3-2006
Abstract
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.
Recommended Citation
Campanelli, Manuela, et al. "Accurate evolutions of orbiting black-hole binaries without excision." Physical Review Letters 96.11 (2006): 111101. http://dx.doi.org/10.1103/PhysRevLett.96.111101
Publication Title
Physical Review Letters
DOI
10.1103/PhysRevLett.96.111101
Comments
© 2006 The American Physical Society http://dx.doi.org/10.1103/PhysRevLett.96.111101