Calibration of moving puncture simulations

被引：269

作者：

Brugmann, Bernd ^{[1
]}

Gonzalez, Jose A. ^{[1
,2
]}

Hannam, Mark ^{[1
]}

Husa, Sascha ^{[1
]}

Sperhake, Ulrich ^{[1
]}

机构：

[1] Univ Jena, Inst Theoret Phys, D-07743 Jena, Germany

[2] Univ Michoacana, Inst Fis & Matemat, Morelia 58040, Michoacan, Mexico

来源：

PHYSICAL REVIEW D | 2008年 / 77卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.77.024027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present single and binary black-hole simulations that follow the "moving-puncture" paradigm of simulating black-hole spacetimes without excision, and use "moving boxes" mesh refinement. Focusing on binary black-hole configurations where the simulations cover roughly two orbits, we address five major issues determining the quality of our results: numerical discretization error, finite extraction radius of the radiation signal, physical appropriateness of initial data, gauge choice, and computational performance. We also compare results we have obtained with the BAM code described here with the independent LEAN code.

引用

页数：25

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