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arXiv 2312.08588gr-qcastro-ph.COastro-ph.SR
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进动双黑洞并合的黑洞光谱学

Black Hole Spectroscopy for Precessing Binary Black Hole Coalescences

Hengrui Zhu, Harrison Siegel, Keefe Mitman, Maximiliano Isi, Will M. Farr, Michael Boyle, Nils Deppe, Lawrence E. Kidder, Sizheng Ma, Jordan Moxon, Kyle C. Nell… 展开作者

Hengrui Zhu, Harrison Siegel, Keefe Mitman, Maximiliano Isi, Will M. Farr, Michael Boyle, Nils Deppe, Lawrence E. Kidder, Sizheng Ma, Jordan Moxon, Kyle C. Nelli, Harald P. Pfeiffer, Mark A. Scheel, Saul A. Teukolsky, William Throwe, Vijay Varma, Nils L. Vu

AI总结:

本研究描述了准圆形进动双黑洞并合铃响中激发的准正模,发现进动系统铃响可由非(2,±2)模式主导,有助于广义相对论检验与波形模型系统学理解。

摘要:

引力波铃响观测中对黑洞准正模的光谱学研究,受限于我们对不同双星配置下哪些模式应在天体物理信号中占主导地位的无知,这限制了对广义相对论和天体物理学的检验。在本工作中,我们提出了对在可比较质量、准圆形进动双黑洞并合的铃响中激发的准正模的描述——这是黑洞光谱学框架内尚未完全探索的关键参数空间区域。我们建议,进动与非进动系统的残余扰动在旋转下近似相同,这意味着两个系统中准正模的相对振幅也通过旋转相关联。我们通过分析广泛的数值相对论模拟目录为此提供了证据。振幅中的额外结构与系统的反冲速度及轨道动力学中的其他不对称性有关。我们发现,进动系统的铃响不必由 ${(\ell,m)=(2,\pm 2)}$ 准正模主导,相反,$(2,\pm 1)$~或~$(2,0)$ 准正模可以占主导地位。我们的结果与 LIGO-Virgo 引力波信号 GW190521 的铃响分析一致,也可能有助于理解唯象的旋进-并合-铃响波形模型系统学。

英文摘要:

The spectroscopic study of black hole quasinormal modes in gravitational-wave ringdown observations is hindered by our ignorance of which modes should dominate astrophysical signals for different binary configurations, limiting tests of general relativity and astrophysics. In this work, we present a description of the quasinormal modes that are excited in the ringdowns of comparable mass, quasi-circular precessing binary black hole coalescences -- a key region of parameter space that has yet to be fully explored within the framework of black hole spectroscopy. We suggest that the remnant perturbation for precessing and non-precessing systems is approximately the same up to a rotation, which implies that the relative amplitudes of the quasinormal modes in both systems are also related by a rotation. We present evidence for this by analyzing an extensive catalog of numerical relativity simulations. Additional structure in the amplitudes is connected to the system's kick velocity and other asymmetries in the orbital dynamics. We find that the ringdowns of precessing systems need not be dominated by the ${(\ell,m)=(2,\pm 2)}$ quasinormal modes, and that instead the $(2,\pm 1)$~or~$(2,0)$ quasinormal modes can dominate. Our results are consistent with a ringdown analysis of the LIGO-Virgo gravitational wave signal GW190521, and may also help in understanding phenomenological inspiral-merger-ringdown waveform model systematics.

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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