Improved methods for the detection of gravitational waves associated with gamma-ray bursts

伽马射线暴相关引力波探测的改进方法

• 批准号: 1644622
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1644622
• 关键词: Improved; methods; detection; gravitational; waves

The long-anticipated birth of gravitational-wave astronomy willoccur in the next few years with the advent of the AdvancedLIGO and Advanced Virgo gravitational-wave detectors. Theseinstruments will open a new channel for studying the most extreme phenomena andenvironments found in nature, including gamma-ray bursts, core-collapsesupernovae, and black-hole mergers. The inner engines of these systems are eitherobscured or inherently invisible to electromagnetic observations. Furthermore, theassociated gravitational-wave emission typically depends on poorly understoodphysics, such as the equation-of-state of matter at supra-nuclear densities.Gravitational waves will therefore provide an exciting new probe of theseastrophysical systems, for example constraining the neutron star equation-of-state,and providing laboratories for tests of fundamental physics and cosmology. However,realising the potential of gravitational waves poses a significant challenge: state-of the-art techniques for detecting and interpreting gravitational waves require precisetheoretical models of the gravitational-wave emission, and hence are not applicableto most gravitational-wave sources. This project aims at maximising the scientificexploitation of gravitational waves through advancements beyond current state-of the-art in rapid automated analyses, advanced signal/background discrimination, andwaveform reconstruction. The goals of this project are: (i) to develop the model independenttechniques needed to robustly detect gravitational waves fromrelativistic transient events, and determine the signal structure; (ii) to apply these todata from the Advanced LIGO / Advanced Virgo network to detect GWs; and (

随着 AdvancedLIGO 和 Advanced Virgo 引力波探测器的出现，人们期待已久的引力波天文学将在未来几年内诞生。这些仪器将为研究自然界中发现的最极端现象和环境开辟一条新通道，包括伽马射线爆发、核心塌缩超新星和黑洞合并。这些系统的内部引擎对于电磁观测来说要么是模糊的，要么是本质上不可见的。此外，相关的引力波发射通常取决于人们知之甚少的物理学，例如超核密度下的物质状态方程。因此，引力波将为这些天体物理系统提供令人兴奋的新探测器，例如约束中子星方程国家，并提供基础物理和宇宙学测试实验室。然而，实现引力波的潜力提出了重大挑战：检测和解释引力波的最先进技术需要精确的引力波发射理论模型，因此不适用于大多数引力波源。该项目旨在通过快速自动化分析、先进的信号/背景辨别和波形重建方面超越当前最先进水平的进步，最大限度地科学利用引力波。该项目的目标是：（i）开发独立于模型的技术，以稳健地检测相对论瞬态事件中的引力波，并确定信号结构； (ii) 将这些应用到来自 Advanced LIGO/Advanced Virgo 网络的数据来检测 GW；和 （