Towards a gauge-polyvalent Numerical Relativity code

Alic, Daniela; Bona, Carles; Bona-Casas, Carles

doi:10.1103/PhysRevD.79.044026

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学術論文

Towards a gauge-polyvalent Numerical Relativity code

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Alic, Daniela
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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0811.1691v2.pdf
(プレプリント), 240KB

PRD79_044026.pdf
(全文テキスト（全般）), 295KB

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引用

Alic, D., Bona, C., & Bona-Casas, C. (2009). Towards a gauge-polyvalent Numerical Relativity code. Physical Review D, 79:. doi:10.1103/PhysRevD.79.044026.

引用: https://hdl.handle.net/11858/00-001M-0000-0012-9CFE-5

要旨

The gauge polyvalence of a new numerical code is tested, both in harmonic-coordinate simulations (gauge-waves testbed) 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.