自旋致密天体双星的内旋信号与引力波天文学
Gravitational-Wave Astronomy with Inspiral Signals of Spinning Compact-Object Binaries
摘要：
来自致密双星（黑洞和中子星）的螺旋信号是地基引力波干涉仪（LIGO、Virgo、GEO-600和TAMA-300）正在进行的搜索的主要目标。我们提出了参数估计模拟黑洞-中子星双星的吸气马尔可夫链蒙特卡罗方法。这是第一次，我们都估计了一个旋转组件的二进制inspiral源的参数，并确定了参数估计的准确性，与地面引力波探测器的模拟观测。我们证明，我们可以获得的距离，天空的位置，和二进制方向在更高的精度比以前建议的文献。对于具有足够自旋和两个或三个探测器的内旋的观测，我们发现在确定天空位置时的精度通常为几十平方度。
英文摘要：
Inspiral signals from binary compact objects (black holes and neutron stars) are primary targets of the ongoing searches by ground-based gravitational-wave interferometers (LIGO, Virgo, GEO-600 and TAMA-300). We present parameter-estimation simulations for inspirals of black-hole--neutron-star binaries using Markov-chain Monte-Carlo methods. For the first time, we have both estimated the parameters of a binary inspiral source with a spinning component and determined the accuracy of the parameter estimation, for simulated observations with ground-based gravitational-wave detectors. We demonstrate that we can obtain the distance, sky position, and binary orientation at a higher accuracy than previously suggested in the literature. For an observation of an inspiral with sufficient spin and two or three detectors we find an accuracy in the determination of the sky position of typically a few tens of square degrees.
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