Unconstrained hyperboloidal evolution of black holes in spherical symmetry with GBSSN and Z4c
arXiv:1412.4801 · doi:10.1088/1742-6596/600/1/012061
Abstract
We consider unconstrained evolution schemes for the hyperboloidal initial value problem in numerical relativity as a promising candidate for the optimally efficient numerical treatment of radiating compact objects. Here, spherical symmetry already poses nontrivial problems and constitutes an important first step to regularize the resulting singular PDEs. We evolve the Einstein equations in their generalized BSSN and Z4 formulations coupled to a massless self-gravitating scalar field. Stable numerical evolutions are achieved for black hole initial data, and critically rely on the construction of appropriate gauge conditions.
arXiv comment6 pages, 5 figures
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- Nonlinear Evolution of unstable Charged de Sitter Black Holes with Hyperboloidal Formalism