论文标题
通过极大的质量比率灵感来测量中央银河黑洞
Measurement of the central Galactic black hole by extremely large mass-ratio inspirals
论文作者
论文摘要
在银河系中，由棕色矮人组成的非常大的质量比率灵感（X-MRIS）和银河中心的大型黑洞有望成为太空传播探测器的引力源。在这项工作中，我们通过具有不同参数的轴对称konoplya-rezzolla-zhidenko度量模拟了来自20 X-MRI系统的重力波信号。我们发现，可以准确地确定Kerr黑洞的质量，自旋和偏差参数（$ \ sim 10^{ - 5} -10^{ - 6} $），只有一个X-MRI事件具有较高的信噪比。通过更多的X-MRI观测值，可以改进上述参数的测量。
In the Galaxy, extremely large mass-ratio inspirals(X-MRIs) composed of brown dwarfs and the massive black hole at the Galactic Center are expected to be promising gravitational wave sources for space-borne detectors. In this work, we simulate the gravitational wave signals from twenty X-MRI systems by an axisymmetric Konoplya-Rezzolla-Zhidenko metric with varied parameters. We find that the mass, spin, and deviation parameters of the Kerr black hole could be determined accurately ( $\sim 10^{-5} - 10^{-6}$ ) with only one X-MRI event with a high signal-to-noise ratio. The measurement of the above parameters could be improved with more X-MRI observations.
