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AdvancedVirgo引力波探测器的出现，人们期待已久的引力波天文学的诞生将在未来几年内到来。这些仪器将为研究自然界中发现的最极端的现象和现象开辟一条新的渠道，包括伽马射线爆发、核心超新星和黑洞合并。这些系统的内部引擎要么是模糊的，要么是天生不可见的电磁观测。此外，相关的引力波发射通常依赖于人们所知甚少的物理学，比如超核密度下物质的状态方程。因此，引力波将为探索天体物理系统提供一个令人兴奋的新途径，比如约束中子星星状态方程，并为基础物理学和宇宙学的检验提供实验室。然而，实现引力波的潜力提出了一个重大的挑战：最先进的探测和解释引力波的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分析、先进的信号/背景鉴别和波形重建方面的先进技术，最大限度地利用引力波的科学性。本项目的目标是：（i）发展独立于模型的技术，以稳健地探测来自相对论瞬态事件的引力波，并确定信号结构;（ii）将这些技术应用于Advanced LIGO / Advanced Virgo网络的数据，以探测GWs;以及（