Modeling the Dynamics and the Gravitational-Wave Emission of Co-Alescing Compact Binary Systems

该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。研究涉及引力波理论、数据分析和聚结致密双星的天体物理学等多个主题。它的目标是(I)在后牛顿数量级扩展微扰计算；(Ii)建立有效的进动、旋转黑洞双星模板，忠实地再现准确的数值相对论模拟；(Iii)在激光干涉引力波观测站(LIGO)软件中实现这些有效一体模板，并用LIGO和增强型LIGO进行引力波搜索；(Iv)将有效一体法扩展到中子星/中子星和中子星/黑洞双星和偏心双星；以及(V)掌握合并黑洞的反冲物理学，提供一个简单、易管理的反冲速度分析公式，天体物理学家可以很容易地将其合并到数值分级合并代码中。这项研究将对LIGO探测引力波产生影响，提高从观测波中提取波携带的唯一信息的能力，并测试广义相对论的基本方程。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The research spans several topics in gravitational-wave theory, data-analysis and astrophysics of coalescing compact binaries. It aims at (i) Extending perturbative calculations at higher post-Newtonian order; (ii) Building effective-one-body templates of precessing, spinning black-hole binaries which faithfully reproduce accurate numerical relativity simulations; (iii) Implementing these effective-one-body templates in Laser Interferometer Gravitational Wave Observatory (LIGO) software and carrying out searches for gravitational waves with LIGO and Enhanced LIGO; (iv) Extending the effective-one-body approach to neutron-star/neutron-star and neutron-star/black-hole binaries and to eccentric binaries; and (v) Grasping the physics of recoil from merging black holes, providing a simple, manageable analytical formula for the recoil velocity that can be easily incorporated by astrophysicists in numerical hierarchical-merger codes. This research will have an impact on detecting gravitational waves with LIGO, improve the ability to extract from observed waves unique information that the waves carry, and test fundamental equations of general relativity.