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arXiv 0802.0416astro-phgr-qc
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一般黑洞双星合并的建模

Modeling kicks from the merger of generic black-hole binaries

John G. Baker, William D. Boggs, Joan Centrella, Bernard J. Kelly, Sean T. McWilliams, M. Coleman Miller, James R. van Meter

摘要:

最近的数值相对论结果表明,质量相当的自旋黑洞合并有一个最大的"反冲踢“高达$\sim 4000 \kms$。然而,这些反冲速度与质量比的缩放知之甚少。我们提出了新的运行表明,最大可能的踢垂直于轨道平面不缩放为$\simη^2$(其中$η$是对称的质量比),如前所述,但更符合$\simη^3$,至少对于低轨道进动的系统。我们讨论了这种依赖性对星系抛射方案和中等质量黑洞在球状星团中的保留的影响。

英文摘要:

Recent numerical relativistic results demonstrate that the merger of comparable-mass spinning black holes has a maximum ``recoil kick'' of up to $\sim 4000 \kms$. However the scaling of these recoil velocities with mass ratio is poorly understood. We present new runs showing that the maximum possible kick perpendicular to the orbital plane does not scale as $\simη^2$ (where $η$ is the symmetric mass ratio), as previously proposed, but is more consistent with $\simη^3$, at least for systems with low orbital precession. We discuss the effect of this dependence on galactic ejection scenarios and retention of intermediate-mass black holes in globular clusters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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