REVEALING THE STRUCTURE OF THE UNIVERSE: GRAVITATIONAL WAVES, COSMOLOGY AND EXOPLANETS
揭示宇宙的结构:引力波、宇宙学和系外行星
基本信息
- 批准号:ST/T00049X/1
- 负责人:
- 金额:$ 163.96万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2020
- 资助国家:英国
- 起止时间:2020 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This is an ambitious proposal to advance our understanding of the structures in our Universe, exploiting the latest STFC observational programmes in gravitational waves, the cosmic microwave background, galaxy surveys and exoplanets. Our main goals are:1. We will investigate the statistics of matter in the Universe using the latest galaxy survey data (the Dark Energy Survey), as well as maps of the cosmic microwave background, the relic radiation left over from the Big Bang. Determining whether these statistics are Gaussian (obey the normal distribution), we will be able to better understand gravitational collapse and to look for primordial signals from the early Universe, testing theories for the origin of galaxies.2. In this project, we will develop new approaches to the study of CMB lensing, the gravitational deflection of relic light from the Big Bang, and apply them to the state-of-the-art Simons Observatory experiment. With our novel methods for extracting and inverting the lensing deflection, we will provide a clearer view of the beginning of the universe and the distribution of dark matter.3. The spatial distribution of everything on cosmological distances, from atoms to light, from energy to spacetime itself was set up in the first fraction of a second after the big bang, in an era called inflation. By studying models of inflation, we will predict specific patterns of regularity in this apparently haphazard distribution and search for evidence of this signal in the Cosmic Microwave Background.4. One of the most spectacular discoveries from astrophysics and cosmology is that most of the Universe's matter content is dark, i.e. invisible in electromagnetic observations. The 2017 Nobel-Prize winning detection of gravitational waves now provides us with a new channel to search for the enigmatic dark matter. For this purpose we will compute how dark matter environments manifest themselves in the gravitational wave signal from black hole binaries.5. The recent direct detection of gravitational waves emitted in black hole mergers provides an unprecedented opportunity to test Einstein's General Relativity (GR) for strong gravitational fields. To do this we need theoretical predictions for how a deviation from GR would affect the gravitational waves emitted in a black hole merger. We will develop the mathematics needed to perform supercomputer simulations of black hole mergers in a very broad class of theories. It will use these to identify how the predictions of such theories differ from those of GR in the strong gravity regime.6. Discoveries of the gravitational wave sources by LIGO/Virgo observatory necessitate the need to understand the origin of the objects that produce them - binary black holes and neutron stars. This project takes a fresh look at the dynamical evolution of such relativistic binaries in dense stellar clusters to understand their contribution to LIGO/Virgo discoveries.7. We will study the breaking of tidal waves in stars caused by close exoplanets, to understand the rates at which their orbits are shrinking. We will also provide the scientific community with efficient codes to compute tidal dissipation in rotating and evolving stars and giant planets, so that the origins and orbital evolution of many observed exoplanet systems can be understood.8. Planets are born in the disks of gas and dust encircling very young stars. These disks are both turbulent and magnetised; we will seek, via computer simulations, how these two processes influence the formation of planets, and the evolution of the disks that bear them.9. We have embarked on a joint outreach venture with the Discovery Channel to reach a very large international audience through the launch of a new multimedia Video on Demand service. It will use content we supply from our gravitation and cosmology research projects, on which we will also base our talks and websites for the public and schools.
这是一项雄心勃勃的计划,旨在促进我们对宇宙结构的理解,利用最新的STFC引力波、宇宙微波背景、星系探测和系外行星观测计划。我们的主要目标是:1.我们将利用最新的星系调查数据(暗能量调查)以及宇宙微波背景图(大爆炸遗留下来的遗迹辐射)来调查宇宙中物质的统计数据。确定这些统计量是否是高斯的(服从正态分布),我们将能够更好地理解引力塌缩,并寻找来自早期宇宙的原始信号,从而检验星系起源的理论。在这个项目中,我们将开发新的方法来研究CMB透镜,即大爆炸遗迹光的引力偏转,并将它们应用于最先进的西蒙斯天文台实验。通过我们新的方法提取和反转透镜偏转,我们将提供更清晰的宇宙起源和暗物质分布的观点。宇宙距离上一切事物的空间分布,从原子到光,从能量到时空本身,都是在大爆炸后的几分之一秒内建立起来的,当时的时代被称为暴涨。通过研究暴涨的模型,我们将预测这种表面上随机分布的特定规律性模式,并在宇宙微波背景下寻找这种信号的证据。天体物理学和宇宙学最引人注目的发现之一是,宇宙中的大部分物质都是暗的,即在电磁观测中是看不见的。2017年诺贝尔奖获得者对引力波的探测现在为我们提供了一个寻找神秘暗物质的新渠道。为此,我们将计算暗物质环境如何在来自黑洞双星的引力波信号中显现出来。最近对黑洞合并中发出的引力波的直接探测提供了一个前所未有的机会来检验爱因斯坦的广义相对论(GR)是否具有强大的引力场。要做到这一点,我们需要从理论上预测偏离GR将如何影响黑洞合并中发出的引力波。我们将在非常广泛的理论类别中开发执行黑洞合并的超级计算机模拟所需的数学。它将利用这些来确定这些理论的预测在强重力条件下与GR的预测有何不同。LIGO/Virgo天文台对引力波源的发现需要了解产生它们的物体--双星黑洞和中子星--的起源。该项目以全新的视角观察致密星团中这种相对论双星的动力学演化,以了解它们对LIGO/室女座发现的贡献。我们将研究由封闭的系外行星引起的恒星中潮汐波的破裂,以了解它们的轨道收缩的速度。我们还将为科学界提供有效的程序来计算旋转和演化中的恒星和巨行星的潮汐耗散,以便了解许多已观测到的系外行星系统的起源和轨道演化。行星诞生于环绕着非常年轻的恒星的气体和尘埃的圆盘中。这些圆盘都是湍流和磁化的;我们将通过计算机模拟来研究这两个过程如何影响行星的形成,以及承载它们的圆盘的演化。我们已与探索频道展开一项外展计划,透过推出新的多媒体自选影象服务,接触到庞大的国际观众。它将使用我们从引力和宇宙学研究项目中提供的内容,我们还将基于这些内容为公众和学校提供演讲和网站。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Evidence for violations of Weak Cosmic Censorship in black hole collisions in higher dimensions
- DOI:10.1007/jhep03(2022)111
- 发表时间:2020-11
- 期刊:
- 影响因子:5.4
- 作者:T. Andrade;P. Figueras;U. Sperhake
- 通讯作者:T. Andrade;P. Figueras;U. Sperhake
GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object
- DOI:10.3847/2041-8213/ab960f
- 发表时间:2020-06-01
- 期刊:
- 影响因子:7.9
- 作者:Abbott, R.;Abbott, T. D.;Zweizig, J.
- 通讯作者:Zweizig, J.
Spiral structures in gravito-turbulent gaseous disks
重力湍流气态盘中的螺旋结构
- DOI:10.17863/cam.68436
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Béthune W
- 通讯作者:Béthune W
Crossing a large-N phase transition at finite volume
- DOI:10.1007/jhep02(2021)061
- 发表时间:2020-07
- 期刊:
- 影响因子:5.4
- 作者:Yago Bea;Ó. J. Dias;Thanasis Giannakopoulos;D. Mateos;Mikel Sanchez-Garitaonandia;Jorge E Santos;M. Zilhão
- 通讯作者:Yago Bea;Ó. J. Dias;Thanasis Giannakopoulos;D. Mateos;Mikel Sanchez-Garitaonandia;Jorge E Santos;M. Zilhão
Spatial curvature at the sound horizon
- DOI:10.1088/1475-7516/2020/02/034
- 发表时间:2019-11
- 期刊:
- 影响因子:6.4
- 作者:G. Avis;Sadra Jazayeri;E. Pajer;Jakub Supeł
- 通讯作者:G. Avis;Sadra Jazayeri;E. Pajer;Jakub Supeł
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Edward Shellard其他文献
Edward Shellard的其他文献
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{{ truncateString('Edward Shellard', 18)}}的其他基金
ExCALIBUR H&ES: Intel Xeon GPU Max Pre-Exascale Testbed
神剑H
- 批准号:
EP/Y028082/1 - 财政年份:2023
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
Key Probes of the Extreme Universe: Accretion Discs, Gravitational Waves, CMB and Galaxy Surveys
极端宇宙的关键探测器:吸积盘、引力波、宇宙微波背景和星系巡天
- 批准号:
ST/X001113/1 - 财政年份:2023
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
ExCALIBUR Hardware and Enabling Software
ExCALIBUR 硬件和支持软件
- 批准号:
ST/X001393/1 - 财政年份:2022
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
ExCALIBUR Hardware and Enabling Software (H&ES): In-situ Visualisation and Unified Programming across Accelerator Architectures at Exascale
ExCALIBUR 硬件和支持软件 (H
- 批准号:
ST/W001667/1 - 财政年份:2021
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
Revealing the Structure of the Universe: From Extreme Gravity to Exoplanets
揭示宇宙的结构:从极端重力到系外行星
- 批准号:
ST/P000673/1 - 财政年份:2017
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
DiRAC SMP Facility: The Structure of the Universe
DiRAC SMP 设施:宇宙的结构
- 批准号:
ST/M007065/1 - 财政年份:2014
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
Unveiling the Structure of the Universe
揭示宇宙的结构
- 批准号:
ST/L000636/1 - 财政年份:2014
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
The Structure of the Universe: Cosmology, Exoplanets and Lattice QCD - supplementary grant
宇宙的结构:宇宙学、系外行星和晶格 QCD - 补充补助金
- 批准号:
ST/M00418X/1 - 财政年份:2014
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
DiRAC SMP Facility: Revealing the Structure of the Universe
DiRAC SMP 设施:揭示宇宙结构
- 批准号:
ST/J005673/1 - 财政年份:2012
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
The Structure of the Universe: Cosmology, Exoplanets and Lattice QCD
宇宙的结构:宇宙学、系外行星和晶格 QCD
- 批准号:
ST/K00333X/1 - 财政年份:2012
- 资助金额:
$ 163.96万 - 项目类别:
Research Grant
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