Towards a gauge-polyvalent numerical relativity code

被引：20

作者：

Alic, Daniela ^{[1
]}

Bona, Carles ^{[1
]}

Bona-Casas, Carles ^{[1
]}

机构：

[1] Univ Illes Balears, Dept Fis, Inst Appl Computat Community Code 0, E-07071 Palma de Mallorca, Spain

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.79.044026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：12

共 34 条

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