Preparing the Hardware Foundations of Environmental Vetoes for the Advanced LIGO Era

为高级 LIGO 时代准备环境否决的硬件基础

• 批准号: 1208007
• 负责人: Szabolcs Marka
• 金额: $ 7万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1208007&HistoricalAwards=false
• 关键词: Preparing; Hardware; Foundations; Environmental; Vetoes

Highly reliable, finely tuned gravitational-wave telescopes with exquisite sensitivity are required for the detection of gravitational-waves - ripples in the fabric of spacetime - and for astrophysics investigations that follow the first direct detection of them. This award will enable activities that ensure reliable operation and well understood data flow from the advanced LIGO gravitational wave detectors. Our focus will be on mission-critical activities targeting the precisely documented, well-characterized and traceable operation of the aLIGO detectors and specifically their physical environment. Environmental disturbances, such as seismic, electromagnetic and acoustic signals, can couple into the complex infrastructure of the gravitational-wave detectors and cause transient, temporary, or continuous deterioration of the datastream that shall contain the gravitational wave signal. These artifacts in the gravitational wave data stream caused by the environment or sub-optimal interferometer tuning must be identified, tracked down, and eliminated or reduced if possible. We will focus on aspects of the evaluation, calibration and upgrade of the hardware components aimed to identify these physical environmental artifacts. The identification of environmental noise sources and the mitigation of their effect in the advanced LIGO era will be vital (1) for ensuring a discovery that is justifiable to the scientific community, and (2) for the realization of a spectrum of science goals for the LIGO Scientific Collaboration, all relying on achieving the design sensitivity for the advanced detectors and on achieving the lowest possible false event rates. The proposed experimental efforts therefore will significantly contribute to all gravitational wave searches using the advanced detectors, including the multimessenger type transient searches. Students from high school through graduate level will have the opportunity to participate in this research. In addition, the urban setting and existing outreach infrastructure of Columbia University will enable unique educational and outreach activities based on this research that target schools not only in the local community but also in the greater New York City metropolitan area.

需要高度可靠，调谐的重力波望远镜，以检测引力波的检测 - 时空结构中的涟漪 - 以及在第一次直接检测到它们之后的天体物理学调查中。该奖项将使从高级LIGO重力波检测器中确保可靠操作并充分了解数据流的活动。我们的重点将是针对阿里戈探测器的精确记录，特征和可追溯操作的关键任务活​​动，尤其是其物理环境。环境干扰，例如地震，电磁信号和声学信号，可以融入重力波检测器的复杂基础设施中，并导致包含重力波信号的数据静音的短暂，临时或连续恶化。如果可能的情况，必须识别，跟踪并消除或减少由环境或亚最佳干涉仪调整引起的重力波数据流中的这些伪影。我们将重点关注旨在识别这些物理环境工件的硬件组件的评估，校准和升级方面。对环境噪声源的识别及其在先进的Ligo时代的效果的减轻效果将至关重要（1），对于确保对科学界是合理的发现，以及（2）实现科学目标的一系列科学目标，用于实现高级探测器的敏感性和实现较低的事件的敏感性。因此，提出的实验工作将大力使用高级检测器（包括多中电学型瞬态搜索）有助于所有重力波搜索。高中到研究生一级的学生将有机会参加这项研究。此外，哥伦比亚大学的城市环境和现有的外展基础设施将基于这项研究来实现独特的教育和外展活动，该研究不仅针对当地社区，而且针对大纽约市大都会地区。