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arXiv 0704.3550gr-qc
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合并中黑洞双星的最终自旋:连续一体方法

Final spin of a coalescing black-hole binary: an Effective-One-Body approach

Thibault Damour, Alessandro Nagar

摘要:

我们更新的合并黑洞二进制内的连续一体(EOB)的方法得出的最终自旋的分析估计。我们考虑不等质量非自旋黑洞双星。据发现,一个更完整的帐户相关的物理效应(更高的后牛顿精度,振铃损失)允许{ \it分析} EOB估计"收敛到“最近获得的{ \it数值}结果在2%以内。这一协议说明了EOB的方法来捕捉合并黑洞双星的基本物理能力。我们的分析方法允许一个估计的最终自旋的黑洞合并二进制文件中的质量范围($ν=m_1m_2/(m_1+m_2)^2 < 0.16 $),这是目前没有覆盖的数值模拟。

英文摘要:

We update the analytical estimate of the final spin of a coalescing black-hole binary derived within the Effective-One-Body (EOB) approach. We consider unequal-mass non-spinning black-hole binaries. It is found that a more complete account of relevant physical effects (higher post-Newtonian accuracy, ringdown losses) allows the {\it analytical} EOB estimate to `converge towards' the recently obtained {\it numerical} results within 2%. This agreement illustrates the ability of the EOB approach to capture the essential physics of coalescing black-hole binaries. Our analytical approach allows one to estimate the final spin of the black hole formed by coalescing binaries in a mass range ($ν=m_1m_2/(m_1+m_2)^2 < 0.16 $) which is not presently covered by numerical simulations.

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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