A Search for Gravitational Radiation at LIGO

*9800961 Brau俄勒冈实验相对论小组将与LIGO科学合作组织合作，准备寻找引力辐射。随着LIGO的建设，一个对引力辐射敏感的新时代将开始。在LIGO调试之后，第一次检测到重力波对LIGO干涉仪中应变测量的影响将来自对以噪声为主的数据流的仔细分析。这将需要对噪声进行仔细的描述，包括许多环境噪声源，以及这些噪声源在干涉仪之间的相关性。环境噪声包括微妙的影响，如杂散磁场和宇宙射线与探测器元件的相互作用，这些可能会在运行的初始阶段限制LIGO的灵敏度。在LIGO投入使用之前，在接下来的两年里，俄勒冈小组将开发分析技术，分析模拟干涉仪数据集，并调查环境因素对模拟数据和预期真实数据的影响。随着广义相对论的发现和初步测试，人们可以预期，探测引力辐射发射体的新天文学将极大地扩大我们对宇宙的理解。通过专注于数据分析和环境对干涉仪数据的影响的调查，俄勒冈集团将为这一新前沿的创建和探索做出重要贡献。重力波的成功观测将依赖于对演变性质的详细数据分析。首先要对仪器的杂散噪声和故障性能进行识别。成功将取决于能够快速隔离来源以进行纠正的分析工具。这也需要很好地表征周围的环境噪声源。随着性能的提高，将探索性能的不可降低的限制。只有对LIGO数据的特征有了更深入的了解，才有可能开发新的技术来搜索日益微妙的引力辐射源，并使这些技术应用于测试新的效果和想法。通过开发工具来理解这些数据，俄勒冈州小组将能够在LIGO实验室委托进行LIGO之后，充分利用LIGO的科学。*

***9800961BrauThe Oregon Experimental Relativity Group will collaborate with the LIGO Scientific Collaboration on preparations to search for gravitational radiation. With the construction of LIGO, a new era of sensitivity to gravitational radiation will begin. After LIGO commissioning, the first detection of the effects of gravity waves on the strain measurements in the LIGO interferometers will come from careful analysis of noise-dominated data streams. This will require a careful characterization of the noise, including the many sources of environmental noise, and the correlation of these noise sources among interferometers. Environmental noise includes subtle effects such as stray magnetic field and cosmic ray interactions with detector elements that may limit LIGO's sensitivity after the initial phase of operation. Prior to LIGO commissioning, during the next two years, the Oregon group will develop analysis techniques, analyze simulated interferometer data sets, and investigate the influence of environmental factors on this simulated data and the anticipated real data.Following the discovery and the initial tests of General Relativity, one can expect a new astronomy of detection of emitters of gravitational radiation to greatly expand our understanding of the universe. By concentrating on data analysis and investigation of environmental influences on the interferometer data, the Oregon group will make an important contribution to the creation and exploration of this new frontier. Successful observation of gravity waves will rely on detailed data analysis of an evolving nature. Initially there is the identification of spurious noise and faulty performance of the instrument. Success will depend on analysis tools that are able to isolate quickly sources for correction. This also requires a good characterization of the surrounding environmental noise sources. As the performance improves, the irreducible limits of performance will be explored. Only with an advanced understanding of the character of the LIGO data will it be possible to develop new techniques to search for increasingly subtle sources of gravitational radiation, and to adapt these techniques to test new effects and ideas. By developing tools to understand this data, the Oregon group will be in a position to exploit fully the science of LIGO after LIGO is commissioned by the LIGO Laboratory.***