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

人们期待已久的引力波天文学的诞生将在未来几年随着先进的LIGO和先进的处女座引力波探测器的出现而发生。这些仪器将为研究自然界中发现的最极端的现象和环境开辟新的渠道，包括伽马射线爆发、核心塌缩超新星和黑洞合并。对于电磁观测来说，这些系统的内部引擎要么是模糊的，要么是天生不可见的。此外，相关的引力波发射通常依赖于不太了解的物理学，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一个令人兴奋的新探测器，例如约束中子星状态方程，并为基础物理和宇宙学的测试提供实验室。然而，实现引力波的潜力是一个巨大的挑战：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来源。该项目旨在通过在快速自动分析、先进的信号/背景识别和波形重建方面超越当前最先进水平的进步，最大限度地利用引力波的科学利用。这个项目的目标是：(I)开发从相对论瞬变事件中稳健地探测引力波所需的与模型无关的技术，并确定信号结构；(Ii)将这些技术应用于来自高级LIGO/高级Virgo网络的数据以探测GWS；以及(

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 (