Maximum kick from nonspinning black-hole binary inspiral

被引：337

作者：

Gonzalez, Jose A. ^{[1
]}

Sperhake, Ulrich ^{[1
]}

Bruegmann, Bernd ^{[1
]}

Hannam, Mark ^{[1
]}

Husa, Sascha ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.98.091101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When unequal-mass black holes merge, the final black hole receives a kick due to the asymmetric loss of linear momentum in the gravitational radiation emitted during the merger. The magnitude of this kick has important astrophysical consequences. Recent breakthroughs in numerical relativity allow us to perform the largest parameter study undertaken to date in numerical simulations of binary black-hole inspirals. We study nonspinning black-hole binaries with mass ratios from q=M-1/M-2=1 to q=0.25 (eta=q/(1+q)(2) from 0.25 to 0.16). We accurately calculate the velocity of the kick to within 6%, and the final spin of the black holes to within 2%. A maximum kick of 175.2 +/- 11 km s(-1) is achieved for eta=0.195 +/- 0.005.

引用

页数：4

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