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arXiv 0812.2325gr-qcastro-ph
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从二元黑洞合并模拟末态

Modelling the final state from binary black-hole coalescences

Luciano Rezzolla

摘要:

在过去的几年里,在数值描述双黑洞的螺旋和合并方面取得了巨大的进展。一个特别的努力已经进入了最终黑洞的物理性质,即其自旋和反冲速度的建模,因为这些量在天体物理学,宇宙学,当然,广义相对论有直接的影响。由于数值相对论计算仍然是非常昂贵的计算,不能用来调查可能的参数的完整空间,半解析方法已经开发出来,并显示出非常高的精度再现的数值结果。我在这里收集和审查这些努力,指出相对的优点和缺点,并讨论哪些方向更有希望进一步改善它们。

英文摘要:

Over the last few years enormous progress has been made in the numerical description of the inspiral and merger of binary black holes. A particular effort has gone into the modelling of the physical properties of the final black hole, namely its spin and recoil velocity, as these quantities have direct impact in astrophysics, cosmology and, of course, general relativity. As numerical-relativity calculations still remain computationally very expensive and cannot be used to investigate the complete space of possible parameters, semi-analytic approaches have been developed and shown to reproduce with very high precision the numerical results. I here collect and review these efforts, pointing out the relative strengths and weaknesses, and discuss which directions are more promising to further improve them.

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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