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arXiv 2108.04154gr-qcastro-ph.COhep-ph
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用引力波测量黑洞双星的暗物质环境

Measuring the dark matter environments of black hole binaries with gravitational waves

Adam Coogan, Gianfranco Bertone, Daniele Gaggero, Bradley J. Kavanagh, David A. Nichols

摘要:

在天体物理和原始起源的黑洞周围,当它们形成和成长时,会形成大的暗物质超密度。这种“黑暗的衣服”不可避免地会影响双星系统的动力学演化,并导致引力波形的失相,这可以用未来的干涉仪来探测。在本文中,我们介绍了一个新的分析模型,以快速计算引力波形的存在下,一个不断变化的暗物质分布。然后,我们提出了一个贝叶斯分析,确定何时可以区分打扮黑洞二进制从GR-在真空中的,以及如何以及他们的参数可以测量,以及如何接近他们必须是可检测的计划激光干涉仪空间天线(LISA)。我们表明,LISA可以明确区分黑暗的衣服从标准的二进制和表征周围的天体物理和原始黑洞的模型参数范围广泛的暗物质环境。我们的方法可以推广到评估的前景检测,分类和表征其他环境效应的引力波物理。

英文摘要:

Large dark matter overdensities can form around black holes of astrophysical and primordial origin as they form and grow. This "dark dress" inevitably affects the dynamical evolution of binary systems, and induces a dephasing in the gravitational waveform that can be probed with future interferometers. In this paper, we introduce a new analytical model to rapidly compute gravitational waveforms in presence of an evolving dark matter distribution. We then present a Bayesian analysis determining when dressed black hole binaries can be distinguished from GR-in-vacuum ones and how well their parameters can be measured, along with how close they must be to be detectable by the planned Laser Interferometer Space Antenna (LISA). We show that LISA can definitively distinguish dark dresses from standard binaries and characterize the dark matter environments around astrophysical and primordial black holes for a wide range of model parameters. Our approach can be generalized to assess the prospects for detecting, classifying, and characterizing other environmental effects in gravitational wave physics.

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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