A Search for Gravitational Radiation at LIGO

在 LIGO 寻找引力辐射

• 批准号: 9800961
• 负责人: James Brau
• 金额: $ 23.5万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9800961&HistoricalAwards=false
• 关键词: Search; Gravitational; Radiation; LIGO

***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.***

*** 9800961Brauthe俄勒冈州实验相对性小组将与Ligo Scientific Collaporation合作，以搜索引力辐射的准备。 随着Ligo的构建，将开始一个对引力辐射的新时代。 LIGO调试后，首次检测重力波对LIGO干涉仪应变测量值的影响将来自对噪声主导的数据流的仔细分析。 这将需要仔细表征噪声，包括许多环境噪声的来源以及干涉仪之间这些噪声源的相关性。 环境噪声包括微妙的效果，例如流浪磁场和宇宙射线与检测器元素的相互作用，这些效果可能会限制运行初期后Ligo的灵敏度。 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. 通过专注于数据分析并研究环境对干涉仪数据的影响，俄勒冈组将对创建和探索这一新边界做出重要贡献。 成功观察重力波将依赖于不断发展的性质的详细数据分析。 最初，仪器的噪声噪声和错误性能都存在鉴定。 成功将取决于能够快速隔离源以进行更正的分析工具。 这也需要对周围环境噪声源进行良好的表征。 随着绩效的提高，将探索性能的不可还原限制。 只有对Ligo数据的特征有深入的了解，才有可能开发新技术来寻找越来越微妙的引力辐射来源，并适应这些技术以测试新的效果和想法。 通过开发了解这些数据的工具，俄勒冈集团将在Ligo实验室委托Ligo后充分利用Ligo的科学。***