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.
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收藏
页数：11
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