RUI: Computational Gravitational-Wave Research for the Era of First Observations

RUI：首次观测时代的计算引力波研究

基本信息

批准号：
1606522
负责人：
Geoffrey Lovelace
金额：
$ 13.5万
依托单位：
CSU Fullerton Auxiliary Services Corporation
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：
2016-07-01 至 2019-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1606522&HistoricalAwards=false
关键词：
RUI Computational Gravitational Wave Research

项目摘要

A century after Einstein predicted their existence, the Laser Interferometer Gravitational-Wave Observatory (LIGO) has made the first observation of gravitational waves--ripples of warped space and time. The waves came from a pair of merging black holes over a billion light years away. This award will help scientists to observe as many gravitational waves as possible while learning as much as possible about the waves' astronomical sources. Specifically, this award supports a research program that uses supercomputers to predict the gravitational waves from merging black holes and neutron stars and to study the most important source of noise limiting LIGO's reach. Through their participation in this program, students at California State University Fullerton, a primarily undergraduate-serving and Hispanic-serving institution, will learn transferable skills in research and computing while playing important roles in the inauguration of a new era in astronomy. The imminent gravitational-wave discoveries could dramatically change our understanding of the universe.This award renews support for California State University Fullerton's computational gravitational-wave research program. The PI and undergraduate and master's-level researchers will address two crucial challenges in computational gravitational-wave physics using high performance computing. First, they will use the Spectral Einstein Code (SpEC) to model merging black holes and neutron stars--the most promising sources for Advanced LIGO--focusing on the challenging but astrophysically important case of rapid black-hole spins. The resulting simulated gravitational waveforms will help maximize LIGO's reach, in part by leading to better approximate waveform models for future LIGO searches; the simulations will also reveal how warped spacetime behaves under extreme conditions never before modeled. Second, the PI and student researchers will use high-performance computing to model thermal noise--one of the most significant fundamental limits to detectors' astrophysical sensitivities--focusing on a highly promising avenue for improvement, crystalline mirror materials. Leveraging these highly sophisticated techniques will allow for breakthroughs in the understanding of the fluctuations in complex elastic structures, including mirrors with crystalline coatings. These new insights will allow for substantial improvements in the thermal noise of high precision measurements, currently a limiting noise source for gravitational-wave detection, atomic clocks, and inertial sensing.

在爱因斯坦预言引力波存在一个世纪后，激光干涉仪引力波天文台（LIGO）首次观测到引力波——扭曲的空间和时间的涟漪。这些波来自距离超过十亿光年的一对正在合并的黑洞。该奖项将帮助科学家观察尽可能多的引力波，同时尽可能多地了解引力波的天文来源。具体来说，该奖项支持一项研究计划，该计划使用超级计算机来预测黑洞和中子星合并产生的引力波，并研究限制 LIGO 影响范围的最重要的噪声源。通过参与该计划，加州州立大学富勒顿分校（主要为本科生和西班牙裔服务的机构）的学生将学习研究和计算方面的可转移技能，同时在天文学新时代的开创中发挥重要作用。即将到来的引力波发现可能会极大地改变我们对宇宙的理解。该奖项再次支持加州州立大学富勒顿分校的计算引力波研究项目。首席研究员以及本科生和硕士级研究人员将利用高性能计算解决计算引力波物理中的两个关键挑战。首先，他们将使用光谱爱因斯坦代码 (SpEC) 来模拟合并的黑洞和中子星（高级 LIGO 最有希望的来源），重点关注具有挑战性但在天体物理学上很重要的快速黑洞自转情况。由此产生的模拟引力波形将有助于最大限度地扩大 LIGO 的覆盖范围，部分原因是为未来 LIGO 搜索提供更好的近似波形模型；模拟还将揭示扭曲时空在前所未有的极端条件下的行为方式。其次，PI和学生研究人员将使用高性能计算来模拟热噪声——探测器天体物理灵敏度最重要的基本限制之一——重点关注一种非常有前途的改进途径，即晶体镜材料。利用这些高度复杂的技术将有助于在理解复杂弹性结构（包括带有结晶涂层的镜子）的波动方面取得突破。这些新见解将有助于大幅改善高精度测量的热噪声，而热噪声目前是引力波探测、原子钟和惯性传感的限制噪声源。

项目成果

期刊论文数量（8）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Numerical-relativity surrogate modeling with nearly extremal black-hole spins

具有近极值黑洞自旋的数值相对论替代模型

DOI：
10.1088/1361-6382/acb3a7
发表时间：
2023-02
期刊：
Classical and Quantum Gravity
影响因子：
3.5
作者：
Walker, Marissa;Varma, Vijay;Lovelace, Geoffrey;Scheel, Mark A
通讯作者：
Scheel, Mark A

Assessing the energetics of spinning binary black hole systems

评估旋转双黑洞系统的能量学

DOI：
10.1103/physrevd.98.104057
发表时间：
2018-11
期刊：
Physical Review D
影响因子：
5
作者：
Ossokine, Serguei;Dietrich, Tim;Foley, Evan;Katebi, Reza;Lovelace, Geoffrey
通讯作者：
Lovelace, Geoffrey

Detection and characterization of spin-orbit resonances in the advanced gravitational wave detectors era

先进引力波探测器时代自旋轨道共振的探测和表征

DOI：
10.1103/physrevd.98.083014
发表时间：
2018-10
期刊：
Physical Review D
影响因子：
5
作者：
Afle, Chaitanya;Gupta, Anuradha;Gadre, Bhooshan;Kumar, Prayush;Demos, Nick;Lovelace, Geoffrey;Choi, Han Gil;Lee, Hyung Mok;Mitra, Sanjit;Boyle, Michael;et al
通讯作者：
et al

Numerically modeling Brownian thermal noise in amorphous and crystalline thin coatings

对非晶态和晶态薄涂层中的布朗热噪声进行数值模拟

DOI：
10.1088/1361-6382/aa9ccc
发表时间：
2018-01
期刊：
Classical and Quantum Gravity
影响因子：
3.5
作者：
Lovelace, Geoffrey;Demos, Nicholas;Khan, Haroon
通讯作者：
Khan, Haroon

Measuring the properties of nearly extremal black holes with gravitational waves

用引力波测量近极值黑洞的特性

DOI：
10.1103/physrevd.98.044028
发表时间：
2018-04-10
期刊：
Physical Review D
影响因子：
5
作者：
K. Chatziioannou;G. Lovelace;M. Boyle;M. Giesler;D. Hemberger;R. Katebi;Lawrence E. Kidder;H. Pfeiffer;M. Scheel;B. Szil'agyi
通讯作者：
B. Szil'agyi