Studies of the Extreme Dynamics of Black Hole Binaries

黑洞双星极端动力学研究

• 批准号: 1607520
• 负责人: Carlos Lousto
• 金额: $ 60万
• 依托单位: Rochester Institute of Tech
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1607520&HistoricalAwards=false
• 关键词: Studies; Extreme; Dynamics; Black; Hole

Gravitational Wave Astronomy promises to provide a revolutionary new view of the universe that can probe previously unexplored regions, including the interiors of neutron stars, collisions of black holes, which emit energy at luminosities exceeding the entire visible universe, and even remnants of the big bang. To gain new insight into the dynamics of the universe, gravitational wave astronomers need to be able to infer the nature of the sources from the observed signals. The physical parameters of these sources can be extracted from the observed signals if the dependence of the waveform on source parameters is known to sufficiently high accuracy. The success of the gravitational wave astronomy efforts therefore depends critically on advancements in Numerical Relativity, especially now that aLIGO is online.The principal goals supported by this award are to produce waveforms for aLIGO source parameterization efforts, and to model the remnant mass, spin, luminosity, and gravitational recoil from highly-precessing spinning black hole binaries (BHBs) in order to elucidate their distributions, and also how recoils affect the distribution and growth of supermassive black holes. This research will also complement other ongoing projects of the RIT group aimed at studying electromagnetic (EM) counterparts to compact-object mergers and to model accretion disk dynamics near supermassive black holes via the inclusion of matter and EM fields in BHBs spacetimes.

引力波天文学有望提供一种革命性的新宇宙观，可以探测以前未被探索的区域，包括中子星的内部，黑洞的碰撞，其发出的能量超过整个可见宇宙的光度，甚至大爆炸的残余物。为了获得对宇宙动力学的新认识，引力波天文学家需要能够从观测到的信号中推断出源的性质。如果已知波形对源参数的依赖性具有足够高的精度，则可以从观测信号中提取这些源的物理参数。因此，引力波天文学工作的成功在很大程度上取决于数值相对论的进展，特别是在aLIGO已经上线的情况下。该奖项支持的主要目标是为LIGO源参数化工作产生波形，并对高速旋转的黑洞双星(BHB)的剩余质量、自旋、光度和引力反冲进行建模，以阐明它们的分布，以及反冲如何影响超大质量黑洞的分布和增长。这项研究还将补充RIT小组正在进行的其他项目，这些项目旨在研究紧凑天体合并的电磁(EM)对应物，并通过在黑洞时空中包含物质和电磁场来模拟超大质量黑洞附近的吸积盘动力学。

项目成果

Comparing an analytical spacetime metric for a merging binary to a fully nonlinear numerical evolution using curvature scalars

将合并双星的分析时空度量与使用曲率标量的完全非线性数值演化进行比较

• DOI: 10.1103/physrevd.97.084007
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Sadiq, Jam;Zlochower, Yosef;Nakano, Hiroyuki
• 通讯作者: Nakano, Hiroyuki

Gravitational wave beacons

引力波信标

• DOI: 10.1103/physrevd.99.064023
• 发表时间: 2019
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Lousto, Carlos O.;Healy, James
• 通讯作者: Healy, James

Numerical relativity in spherical coordinates with the Einstein Toolkit

使用 Einstein 工具包研究球坐标中的数值相对论

• DOI: 10.1103/physrevd.97.084059
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Mewes, Vassilios;Zlochower, Yosef;Campanelli, Manuela;Ruchlin, Ian;Etienne, Zachariah B.;Baumgarte, Thomas W.
• 通讯作者: Baumgarte, Thomas W.

Hangup effect in unequal mass binary black hole mergers and further studies of their gravitational radiation and remnant properties

不等质量双黑洞并合中的挂断效应及其引力辐射和残余特性的进一步研究

• DOI: 10.1103/physrevd.97.084002
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Healy, James;Lousto, Carlos O.
• 通讯作者: Lousto, Carlos O.

Targeted numerical simulations of binary black holes for GW170104

GW170104双黑洞的定向数值模拟

• DOI: 10.1103/physrevd.97.064027
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Healy, J.;Lange, J.;O’Shaughnessy, R.;Lousto, C. O.;Campanelli, M.;Williamson, A. R.;Zlochower, Y.;Calderón Bustillo, J.;Clark, J. A.;Evans, C.
• 通讯作者: Evans, C.