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arXiv 1702.01110gr-qc
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用先进的引力波探测器观测双星黑洞环降

Observing binary black hole ringdowns by advanced gravitational wave detectors

Andrea Maselli, Kostas Kokkotas, Pablo Laguna

摘要:

引力波从致密双星系统中的直接发现,第一次导致探索黑洞光谱的可能性。由合并事件产生的新形成的黑洞是大量的引力辐射源,其形式为阻尼正弦曲线,即准简正模。后者提供了一个宝贵的信息来源的性质,在强场制度的重力,因为他们代表了一个强大的工具,以调查的有效性,无毛定理。在这项工作中,我们进行了系统的研究与当前和未来的干涉仪将测量振铃事件的基本参数,如频率和阻尼时间的准确性。我们分析了这些误差如何影响最终黑洞的质量和角动量的估计,约束参数空间,这将导致最精确的测量。我们探讨单一和多模事件,显示如何发展的不确定性时,多个探测器可用。我们还证明了,对于第二代干涉仪,仪器网络是一个至关重要的和必要的成分进行强引力测试的无毛定理。最后,我们分析了第三代检测器可能能够设置的模式的参数的约束,比较目前的设施所获得的预测界限。

英文摘要:

The direct discovery of gravitational waves from compact binary systems leads for the first time to explore the possibility of black hole spectroscopy. Newly formed black holes produced by coalescing events are copious emitters of gravitational radiation, in the form of damped sinusoids, the quasi normal modes. The latter provide a precious source of information on the nature of gravity in the strong field regime, as they represent a powerful tool to investigate the validity of the no-hair theorem. In this work we perform a systematic study on the accuracy with which current and future interferometers will measure the fundamental parameters of ringdown events, such as frequencies and damping times. We analyze how these errors affect the estimate of the mass and the angular momentum of the final black hole, constraining the parameter space which will lead to the most precise measurements. We explore both single and multimode events, showing how the uncertainties evolve when multiple detectors are available. We also prove that, for second generation of interferometers, a network of instruments is a crucial and necessary ingredient to perform strong-gravity tests of the no-hair theorem. Finally, we analyze the constraints that a third generation of detectors may be able to set on the mode's parameters, comparing the projected bounds against those obtained for current facilities.

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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