Integration of inhomogeneous cosmological spacetimes in the BSSN formalism

被引：48

作者：

Mertens, James B. ^{[1
]}

Giblin, John T., Jr. ^{[1
,2
]}

Starkman, Glenn D. ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Phys, CERCA ISO, 10900 Euclid Ave, Cleveland, OH 44106 USA

[2] Kenyon Coll, Dept Phys, 201 North Coll Rd, Gambier, OH 43022 USA

来源：

PHYSICAL REVIEW D | 2016年 / 93卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.93.124059

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present cosmological-scale numerical simulations of an evolving universe in full general relativity and introduce a new numerical tool, COSMOGRAPH, which employs the Baumgarte-Shapiro-Shibata-Nakamura formalism on a three-dimensional grid. Using COSMOGRAPH, we calculate the effect of an inhomogeneous matter distribution on the evolution of a spacetime. We also present the results of a set of standard stability tests to demonstrate the robustness of our simulations.

引用

页数：11

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