Gravitational Waves from a Fissioning White Hole

Abstract

We present a fully nonlinear calculation of the waveform of the gravitational radiation emitted in the fission of a vacuum white hole. At early times, the waveforms agree with close-approximation perturbative calculations but they reveal dramatic time and angular dependence in the nonlinear regime. The results pave the way for a subsequent computation of the radiation emitted after a binary black hole merger.

11 pages, 6 figures, RevTeX4

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• Hyperboloidal evolution with the Einstein equations
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• Linearized solutions of the Einstein equations within a Bondi-Sachs framework, and implications for boundary conditions in numerical simulations
• Non-linear black hole dynamics and Carrollian fluids
• Numerical relativity with characteristic evolution, using six angular patches
• A framework for large-scale relativistic simulations in the characteristic approach
• On characteristic initial data for a star orbiting a black hole
• Retarded radiation from colliding black holes in the close limit
• Fully relativistic three-dimensional Cauchy-characteristic matching for physical degrees of freedom
• Hybrid method for understanding black-hole mergers: Inspiralling case
• First-order quasilinear canonical representation of the characteristic formulation of the Einstein equations
• Black holes, white holes, and near-horizon physics
• Exact boundary conditions in numerical relativity using multiple grids: scalar field tests
• Waves in Schwarzschild spacetimes: How strong can imprints of the spacetime curvature be
• Avenues for Analytic exploration in Axisymmetric Spacetimes. Foundations and the Triad Formalism