论文标题
使用聚焦的降低阶数正交二进制中子星聚的重力波的快速参数估计
Rapid Parameter Estimation of Gravitational Waves from Binary Neutron Star Coalescence using Focused Reduced Order Quadrature
论文作者
论文摘要
二进制中子星聚的重力波的快速参数估计，特别是在初始检测阶段后几分钟内的精确天空定位，对于多通间剂观测的成功至关重要。加快参数估计的技术之一是将其用于Ligo-Virgo协作的生产分析，是降低的订单正交（ROQ）。虽然它可以显着加快参数估计，但所需的时间仍处于小时的顺序上。为了关注参数估计随访的事实，可以通过检测阶段可用的信息调整，我们改进了ROQ技术并开发了一种新技术，我们将其指定为重点减少订单正交（FROQ）。我们发现，FROQ将参数估计加快了$ \ MATHCAL {O}（10^3）$至$ \ MATHCAL {O}（O}（10^4）$，并启用可提供准确的源属性，例如在检测后几十分钟内提供准确的源属性。
Rapid parameter estimation of gravitational waves from binary neutron star coalescence, in particular accurate sky localisation in minutes after the initial detection stage, is crucial for the success of multi-messenger observations. One of the techniques to speed up the parameter estimation, which has been applied for the production analysis of the LIGO-Virgo collaboration, is reduced order quadrature (ROQ). While it speeds up parameter estimation significantly, the time required is still on the order of hours. Focusing on the fact that the parameter-estimation follow-up can be tuned with the information available at the detection stage, we improve the ROQ technique and develop a new technique, which we designate focused reduced order quadrature (FROQ). We find that FROQ speeds up the parameter estimation by a factor of $\mathcal{O}(10^3)$ to $\mathcal{O}(10^4)$ and enables providing accurate source properties such as the location of a source in several tens of minutes after detection.
