Precision tracking of massive black hole spin evolution with LISA
Precision tracking of massive black hole spin evolution with LISA
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DOI：
10.1103/physrevd.108.124045
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发表时间：
2023-07
影响因子：
5
通讯作者：
G. Pratten;P. Schmidt;H. Middleton;A. Vecchio
中科院分区：
文献类型：
--
作者：
G. Pratten;P. Schmidt;H. Middleton;A. Vecchio
激光干涉仪空间天线（LISA）将在限制整个宇宙大质量黑洞的起源和演化方面发挥至关重要的作用。在本研究中，我们使用包含进动和更高多极的波形模型 (IMRPhenomXPHM) 以及完整的贝叶斯推理来探索 LISA 约束二进制参数的准确性。我们证明，LISA 将能够以百分比的精度跟踪自旋的演化（幅度和方向），提供有关大质量黑洞双星的动力学和演化以及合并发生的星系环境的重要信息。这种精确的自旋跟踪进一步使LISA能够测量残余黑洞的反冲速度，其精度优于$100\,\mathrm{km}\,\mathrm{s}^{-1}$（90\%可信度）及其几度的方向，这为合并后关联提供了额外的重要天体物理信息。使用一套系统的双星系统，我们展示了组成部分的质量可以在百分之几的水平上测量，天空面积可以限制在 $\Delta \Omega_{90} \approx 0.01 \, \rm{deg}^2$ 范围内，并且双星红移可以限制在 $0.01$ 以下。
The Laser Interferometer Space Antenna (LISA) will play a vital role in constraining the origin and evolution of massive black holes throughout the Universe. In this study we use a waveform model (IMRPhenomXPHM) that includes both precession and higher multipoles, and full Bayesian inference to explore the accuracy to which LISA can constrain the binary parameters. We demonstrate that LISA will be able to track the evolution of the spins -- magnitude and orientation -- to percent accuracy, providing crucial information on the dynamics and evolution of massive black hole binaries and the galactic environment in which the merger takes place. Such accurate spin-tracking further allows LISA to measure the recoil velocity of the remnant black hole to better than $100\,\mathrm{km}\,\mathrm{s}^{-1}$ (90\% credibility) and its direction to a few degrees, which provides additional important astrophysical information on the post-merger association. Using a systematic suite of binaries, we showcase that the component masses will be measurable at the sub-percent level, the sky area can be constrained to within $\Delta \Omega_{90} \approx 0.01 \, \rm{deg}^2$, and the binary redshift to less than $0.01$.