期刊
PHYSICAL REVIEW D
卷 79, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.79.044026
关键词
-
资金
- European Union
- Spanish Ministry of Science and Education [FPA2007-60220, CSD2007-00042, ECI2007-29029-E]
- Balearic Conselleria d'Economia Hissenda i Innovacio [PRDIB-2005GC2-06]
- Spanish Ministry of Science [BES-2005-10633, FPU/2006-02226]
The gauge polyvalence of a new numerical code is tested, both in harmonic-coordinate simulations (gauge-waves test bed) and in singularity-avoiding coordinates (simple black-hole simulations, either with or without shift). The code is built upon an adjusted first-order flux-conservative version of the Z4 formalism and a recently proposed family of robust finite-difference high-resolution algorithms. An outstanding result is the long-term evolution (up to 1000M) of a black hole in normal coordinates (zero shift) without excision.
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