Gravitation Physics and Relativistic Astrophysics

引力物理学和相对论天体物理学

• 批准号: 1707800
• 负责人: Eanna Flanagan
• 金额: $ 46万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1707800&HistoricalAwards=false
• 关键词: Gravitation; Physics; Relativistic; Astrophysics

This award funds theoretical research in several different topics in relativistic astrophysics and general relativity. One focus is on tests of general relativity and on sources of gravitational radiation that might be detected by the Laser Interferometer Gravitational Wave Observatory (LIGO) and by future space based detectors. Theoretical studies of sources of gravitational waves funded by this award will be useful to aid detection of signals from black holes and other sources, and also to aid in their interpretation. Gravitational wave studies can tell us about the nature of gravity, properties of black holes, and properties of the early Universe. A second focus is the exploration of newly discovered conservation laws involving black holes, and their implications for deep and poorly understood issues in quantum gravity such as the information loss paradox discovered by Stephen Hawking.In more detail, the principal research topics of this award are: (i) The development of methods to compute the gravitational waveforms from point particles inspiraling into spinning black holes, using a combination of analytical and numerical approaches; (ii) Generalizing the mathematical formalism of Wald and Zoupas to develop a comprehensive description and understanding of conservation laws involving soft hair on black holes, and studying their physical consequences.

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。 一个重点是广义相对论的测试和可能被激光干涉引力波天文台（LIGO）和未来的空间探测器探测到的引力辐射源。由该奖项资助的引力波源的理论研究将有助于检测来自黑洞和其他来源的信号，并有助于解释它们。引力波研究可以告诉我们引力的本质，黑洞的性质和早期宇宙的性质。第二个重点是探索新发现的涉及黑洞的守恒定律，以及它们对量子引力中深层次和知之甚少的问题的影响，例如斯蒂芬霍金发现的信息损失悖论。更详细地说，这个奖项的主要研究课题是：（i）发展计算点粒子螺旋进入旋转黑洞的引力波形的方法，使用分析和数值方法相结合;（ii）概括的数学形式主义的沃尔德和Zoupas开发一个全面的描述和理解的守恒定律，涉及黑洞的软毛，并研究其物理后果。

项目成果

Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity

爱因斯坦-膨胀-高斯-邦内引力中拓扑视界积分的黑洞标量电荷

• DOI: 10.1103/physrevd.98.021503
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Prabhu, Kartik;Stein, Leo C.
• 通讯作者: Stein, Leo C.

Radiation-reaction force on a small charged body to second order

• DOI: 10.1103/physrevd.97.105001
• 发表时间: 2015-04
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Jordan Moxon;'. Flanagan

Extensions of the asymptotic symmetry algebra of general relativity

• DOI: 10.1007/jhep01(2020)002
• 发表时间: 2019-10
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: E. Flanagan;Kartik Prabhu;I. Shehzad

Brown-York charges at null boundaries

• DOI: 10.1007/jhep01(2022)029
• 发表时间: 2022-01
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: V. Chandrasekaran;E. Flanagan;I. Shehzad;A. Speranza

Conservation of asymptotic charges from past to future null infinity: supermomentum in general relativity

从过去到未来零无穷大的渐近电荷守恒：广义相对论中的超动量

• DOI: 10.1007/jhep03(2019)148
• 发表时间: 2019
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Prabhu, Kartik