Dynamical shift condition for unequal mass black hole binaries

被引：18

作者：

Mueller, Doreen ^{[1
]}

Grigsby, Jason ^{[1
]}

Bruegmann, Bernd ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 06期

关键词：

INITIAL DATA;

D O I：

10.1103/PhysRevD.82.064004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Certain numerical frameworks used for the evolution of binary black holes make use of a gamma driver, which includes a damping factor. Such simulations typically use a constant value for damping. However, it has been found that very specific values of the damping factor are needed for the calculation of unequal mass binaries. We examine carefully the role this damping plays and provide two explicit, nonconstant forms for the damping to be used with mass ratios further from one. Our analysis of the resultant waveforms compares well against the constant damping case.

引用

页数：10

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