论文标题
恒星起源的可检测性和参数估计黑洞二进制于下一代重力波检测器
Detectability and parameter estimation of stellar origin black hole binaries with next generation gravitational wave detectors
论文作者
论文摘要
我们考虑恒星 - 烯烃黑洞二进制二进制物，这是下一代重力波（GW）探测器（例如爱因斯坦望远镜（ET）和宇宙探险家（CE））的主要天体物理源之一。 Using population models calibrated with the most recent LIGO/Virgo results from O3b run, we show that ET and CE will be capable of detecting tens of thousands of such sources (and virtually all of those present in our past light cone up to $z\lesssim 0.7$ for ET and $z\lesssim 1$ for CE) with a signal-to-noise ratio up to several hundreds, irrespective of the detector design.当涉及参数估计时，我们使用Fisher-Matrix分析来评估设计对内在和外在参数估计的影响。我们发现，与ET在其三角形构型中相比，由两个不同的$ l- $形状干涉仪组成的CE检测器具有更好的天空定位性能。我们还发现，该网络通常能够以$ 10^{ - 5} $，$ 10^{ - 4} $和$ 10^{ - 4} $分数误差分别测量二进制的chirp质量，对称质量比和二进制旋转。虽然外部参数的分数错误是$ 10^{ - 2} $的订单，用于天空定位，光度距离和倾斜度。
We consider stellar-origin black hole binaries, which are among the main astrophysical sources for next generation gravitational wave (GW) detectors such as the Einstein Telescope (ET) and Cosmic Explorer (CE). Using population models calibrated with the most recent LIGO/Virgo results from O3b run, we show that ET and CE will be capable of detecting tens of thousands of such sources (and virtually all of those present in our past light cone up to $z\lesssim 0.7$ for ET and $z\lesssim 1$ for CE) with a signal-to-noise ratio up to several hundreds, irrespective of the detector design. When it comes to parameter estimation, we use a Fisher-matrix analysis to assess the impact of the design on the estimation of the intrinsic and extrinsic parameters. We find that the CE detector, consisting of two distinct $L-$shape interferometers, has better sky localization performance compared to ET in its triangular configuration. We also find that the network is typically capable of measuring the chirp mass, symmetric mass ratio and spins of the binary at order of $10^{-5}$, $10^{-4}$ and $10^{-4}$ fractional error respectively. While the fractional errors for the extrinsic parameters are of order $10^{-2}$ for the sky localization, luminosity distance and inclination.
