Post-Newtonian Templates for Gravitational Waves from Compact Binary Inspirals
Post-Newtonian Templates for Gravitational Waves from Compact Binary Inspirals
复制标题
DOI：
10.1007/978-981-15-4702-7_31-1
复制
发表时间：
2020-12
期刊：
影响因子：
--
通讯作者：
Soichiro Isoyama;R. Sturani;H. Nakano
中科院分区：
文献类型：
--
作者：
Soichiro Isoyama;R. Sturani;H. Nakano
为了能够检测和最大限度地从紧凑的双星系统引力波观测的物理输出，精确的波形模型的可用性至关重要。目前的工作旨在为非专家提供在紧双星合并引力波数据分析中使用的（激励）波形的概述。我们首先在简单的牛顿轨道动力学和线性化重力理论中提供了重力辐射物理的基本要素，描述了应用于双星系统的绝热近似：在实践中构建理论重力波形的关键要素。接下来，我们列出了广义相对论的后牛顿近似下的引力波，并强调了缓慢演化、自旋、非进动和准圆形双黑洞的激励波形的基本输入，即后牛顿能量、通量和（吸收校正）平衡方程。然后在时域和频域同时呈现后牛顿启发模板。最后，包括合并和随后的衰铃阶段，我们简要地介绍了目前在LSC算法库仿真中实现的紧凑二元合并的两类全波形模型：有效一体方法和现象学频域模型。
To enable detection and maximize the physics output of gravitational wave observations from compact binary systems, the availability of accurate waveform models is crucial. The present work aims at giving an overview for non-experts of the (inspiral) waveforms used in the gravitational wave data analysis for compact binary coalescence. We first provide the essential elements of gravitational radiation physics within a simple Newtonian orbital dynamics and the linearized gravity theory, describing the adiabatic approximation applied to binary systems: the key element to construct the theoretical gravitational waveforms in practice. We next lay out the gravitational waveforms in the post-Newtonian approximation to general relativity and highlight the basic input for the inspiral waveform of the slowly evolving, spinning, nonprecessing, and quasicircular binary black holes, namely, post-Newtonian energy, fluxes, and the (absorption-corrected) balance equation. The post-Newtonian inspiral templates are then presented both in the time and frequency domain. Finally, including the merger and subsequent ringdown phase, we briefly survey the two families of the full waveform models of compact binary mergers currently implemented in LSC Algorithm Library Simulation: the effective-one-body approach and the phenomenological frequency-domain model.