Constraint-preserving Sommerfeld conditions for the harmonic Einstein equations

被引：22

作者：

Babiuc, M. C. ^{[1
]}

Kreiss, H-O.

Winicour, Jeffrey

机构：

[1] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[2] Royal Inst Technol, NADA, S-10044 Stockholm, Sweden

[3] Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-4476 Golm, Germany

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.75.044002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The principle part of Einstein equations in the harmonic gauge consists of a constrained system of 10 curved space wave equations for the components of the space-time metric. A new formulation of constraint-preserving boundary conditions of the Sommerfeld-type for such systems has recently been proposed. We implement these boundary conditions in a nonlinear 3D evolution code and test their accuracy.

引用

页数：13

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