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

联合压缩双星系统的动力学和引力波发射建模

• 批准号: 0903631
• 负责人: Alessandra Buonanno
• 金额: $ 98万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0903631&HistoricalAwards=false
• 关键词: Modeling; Dynamics; Gravitational; Wave; Emission

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.

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。研究涵盖引力波理论，数据分析和合并致密双星的天体物理学的几个主题。其目的是：（一）扩大后牛顿高阶微扰计算;（二）建立进动、旋转黑洞双星的有效单体模板，忠实地再现精确的数值相对论模拟;（三）在激光干涉仪引力波天文台软件中实施这些有效单体模板，并利用激光干涉仪引力波天文台和增强型激光干涉仪引力波天文台搜索引力波;（iv）将有效单体方法扩展到中子星/中子星和中子星/黑洞双星以及偏心双星;（v）掌握黑洞合并反冲的物理学原理，提供一个简单易行的反冲速度分析公式，天体物理学家可以很容易地将其纳入数字分层合并代码。这项研究将对LIGO探测引力波产生影响，提高从观测到的波中提取波携带的独特信息的能力，并测试广义相对论的基本方程。