A Search for Gravitational Radiation at LIGO: Oregon Experimental Relativity Group

在 LIGO 寻找引力辐射：俄勒冈实验相对论小组

• 批准号: 0071058
• 负责人: James Brau
• 金额: $ 45万
• 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: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0071058&HistoricalAwards=false
• 关键词: Search; Gravitational; Radiation; LIGO; Oregon

During the next three years, the Oregon Experimental Relativity Groupwill collaborate with the LIGO Scientific Collaboration, on the searchfor gravitational radiation with LIGO. Specifically, the Oregon groupwill play a large role in the development of an understanding of theenvironmental noise sources which would otherwise limit the sensitivityof LIGO. Environmental noise includes subtle effects such as straymagnetic field and cosmic ray interactions with detector elements whichmay limit LIGO's sensitivity after the initial phase of operation. TheOregon group will develop the environmental monitoring capabilities ofLIGO in the the areas of weather monitoring, magnetic fields, seismiccharacterization, cosmic ray studies, and gravity-gradient noise. Theywill develop analysis techniques, analyze interferometer data sets, andinvestigate the influence of these environmental factors on data. Theywill search for gravity wave signals, including signals correlated withgamma ray bursts.With the construction of LIGO, a new era of sensitivity togravitational radiation will begin. After LIGO commissioning, thefirst experiments attempting detection of the effects of gravity waveson the strain measurements in the LIGO interferometers will needcareful analysis of noise-dominated data streams. This will require acareful characterization of the noise, including the many sources ofenvironmental noise, and the correlation of these noise sources amonginterferometers.

在接下来的三年里，俄勒冈州实验相对论小组将与LIGO科学合作组织合作，用LIGO寻找引力辐射。 具体来说，俄勒冈州小组将在了解环境噪声源方面发挥重要作用，否则将限制LIGO的灵敏度。 环境噪声包括杂散磁场和宇宙射线与探测器元件的相互作用等微妙的影响，这些影响可能会限制LIGO在运行初期的灵敏度。 俄勒冈小组将在天气监测、磁场、地震特征、宇宙射线研究和重力梯度噪声等领域开发LIGO的环境监测能力。 他们将开发分析技术，分析干涉仪数据集，并调查这些环境因素对数据的影响。 随着LIGO的建成，一个对引力辐射敏感的新时代将开始。 在LIGO调试之后，第一次尝试检测重力波对LIGO干涉仪中应变测量的影响的实验将需要仔细分析噪声占主导地位的数据流。 这就需要对噪声进行仔细的描述，包括许多环境噪声源，以及这些噪声源与干涉仪的相关性。