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: 0245109
• 负责人: James Brau
• 金额: $ 78万
• 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: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0245109&HistoricalAwards=false
• 关键词: Search; Gravitational; Radiation; LIGO; Oregon

The Oregon experimental relativity research program is aimed at the search for burst sources of gravity waves (GWBs). An important prerequisite to the realization of this significant scientific discovery is identification and amelioration of noise sources in the LIGO interferometers. Dealing with these sources is one principal focus of the Oregon effort, as is the development of data analysis tools directed at a range of issues from instrumental effects to astrophysical investigations. The overall effort can be categorized into four areas: 1.) identifying and reducing environmental influences, in order to improve interferometer sensitivity and decrease false detection rates for the individual interferometers. This involves identifying sources, reducing coupling and helping produce environmentally based vetoes. In addition to environmental coupling, this involves coupling between auxiliary interferometer channels and the gravity-wave channel for veto production purposes. 2.) studying and, where possible, reducing the false coincidence rates between the three LIGO interferometers. This will involve a continuation of the inter-site environmental correlations project and an investigation of any phenomena which reduces the statistical independence of noise from the two Hanford interferometers. 3.) developing and applying data distribution, monitoring and astrophysical analysis tools. The active role developed during the LIGO engineering and science runs will continue. 4.) applying the lessons learned with Intial LIGO to the plans and preparation for Advanced LIGO. The research of the Oregon group contributes significantly to the outside community through a number of efforts undertaken to broaden the impact. These include undergraduate participation in the group's research activities, summer research programs for talented high school students, work with Oregon high school teachers to bring the research experience into the high school (part of the Quark Net program), and speaking engagements to community groups. This research will also contribute to the broader benefit of society through the publication of the scientific results, and the education of the graduate students and postdoctoral associates working on the project.

俄勒冈实验相对论研究计划旨在寻找重力波（gwb）的爆发源。实现这一重大科学发现的重要前提是对LIGO干涉仪噪声源的识别和改进。处理这些来源是俄勒冈努力的一个主要重点，同时也是针对从仪器效应到天体物理调查等一系列问题开发数据分析工具的重点。总体工作可分为四个方面：1)识别和减少环境影响，以提高干涉仪的灵敏度和降低单个干涉仪的误检率。这包括确定来源，减少耦合和帮助产生基于环境的否决。除了环境耦合之外，这还涉及用于否决权生产目的的辅助干涉仪通道和重力波通道之间的耦合。2)研究并尽可能减少三个LIGO干涉仪之间的错误重合率。这将涉及站点间环境相关性项目的继续，以及对降低两个汉福德干涉仪噪声统计独立性的任何现象的调查。3)开发和应用数据分发、监测和天体物理分析工具。在LIGO工程和科学运行期间发展起来的积极作用将继续下去。4)将从初始LIGO中吸取的经验教训应用到高级LIGO的计划和准备中。俄勒冈小组的研究通过一系列努力扩大影响，对外部社区作出了重大贡献。这些包括本科生参与小组的研究活动，为有才华的高中生提供的暑期研究项目，与俄勒冈州高中教师合作将研究经验带入高中（夸克网络项目的一部分），以及向社区团体发表演讲。这项研究还将通过科学成果的发表，以及对从事该项目的研究生和博士后的教育，为更广泛的社会利益做出贡献。