Radiation reaction, orbital evolution, and emitted gravitational waveforms from extreme-mass-ratio binaries, and wave extraction for numerical relativity

辐射反应、轨道演化、极端质量比双星发射的引力波形，以及数值相对论的波提取

• 批准号: 0757344
• 负责人: Lior Burko
• 金额: $ 12万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0757344&HistoricalAwards=false
• 关键词: Radiation; reaction; orbital; evolution; emitted

This award supports theoretical research on topics related to gravitational waves. One of these is a study of the properties of extreme mass ratio binary inspirals where a stellar mass black hole orbits a supermassive black hole, emits gravitational waves, and eventually falls in. Such a system could be an important source for the Laser Interferometer Space Antenna (LISA) . Accurate calculation of the orbit of the stellar mass black hole and of the gravitational radiation produced require improved understanding of fundamental issues in Einstein's theory of general relativity such as the "self-force" on the small black hole due to the gravitational radiation it emits and how that changes the orbit. Another project is to develop a method to extract gravitational waveforms from large scale numerical simulations of (comparable mass) binary black hole systems. Better understanding of gravitational wave sources and waveforms will maximize the discovery opportunities presented by ground-based gravitational wave detectors now operating and future space-based detectors. Undergraduate and graduate students will participate in this research. The PI plans to continue his program of public outreach and his involvement with nearby minority serving institutions.

该奖项支持与引力波相关的理论研究。其中之一是研究极端质量比双星螺旋的性质，在这种螺旋中，一个恒星质量的黑洞绕着一个超大质量的黑洞旋转，发出引力波，最终福尔斯落入其中。这种系统可能是激光干涉仪空间天线（丽莎）的重要来源。精确计算恒星质量黑洞的轨道和产生的引力辐射需要更好地理解爱因斯坦广义相对论中的基本问题，例如由于它发出的引力辐射而引起的小黑洞的“自作用力”以及它如何改变轨道。另一个项目是开发一种方法，从（可比质量）二元黑洞系统的大规模数值模拟中提取引力波形。更好地了解引力波源和波形将最大限度地利用目前正在运行的地基引力波探测器和未来的天基探测器提供的发现机会。本科生和研究生将参与这项研究。PI计划继续他的公共宣传计划，并与附近的少数民族服务机构合作。