Gravitation physics and relativistic astrophysics

引力物理学和相对论天体物理学

• 批准号: 0757735
• 负责人: Eanna Flanagan
• 金额: $ 42万
• 依托单位: Cornell University
• 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 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0757735&HistoricalAwards=false
• 关键词: Gravitation; physics; relativistic; astrophysics

This award funds theoretical research in several different topics in relativistic astrophysics and general relativity, with a focus on sources of gravitational radiation that might be detected by the Laser Interferometer Gravitational Wave Observatory (LIGO) and by the proposed space based detector, the Laser Interferometer Space Antenna (LISA). The principal topics are: (A) the development and implementation of methods to compute the gravitational signals from stars or small black holes inspiralling into large spinning black holes; (B) the assessment of the importance of backreaction effects in cosmology, in order to show definitively that they cannot explain the observed acceleration of the expansion of the Universe; and (C) computing the experimental constraints on various alternative theories of gravity that have been proposed as explanations for the Universe's acceleration.The research on development of computational methods for gravitational waveforms will eventually have a significant impact on gravitational wave astronomy, by facilitating the detection and analysis of gravitational wave signals, from which we can learn about properties of black holes. Education and training of graduate and undergraduate students will be integrated into the research program.

该奖项资助相对论天体物理学和广义相对论中几个不同主题的理论研究，重点是可能被激光干涉仪引力波天文台（LIGO）和拟议的天基探测器激光干涉仪空间天线（丽莎）探测到的引力辐射源。 主要议题是：（A）发展和实施计算恒星或小黑洞进入大的旋转黑洞的引力信号的方法;（B）评估宇宙学中反反应效应的重要性，以明确表明它们不能解释观测到的宇宙加速膨胀;和（C）计算各种不同的引力理论的实验约束，这些理论被提出来解释宇宙的加速度。引力波形计算方法的发展研究最终将有一个对引力波天文学产生了重大影响，通过促进引力波信号的检测和分析，我们可以从中了解黑洞的性质。研究生和本科生的教育和培训将纳入研究计划。