Maximizing the Early-Detection Science of Advanced LIGO

最大化先进 LIGO 的早期探测科学

• 批准号: 1404462
• 负责人: Szabolcs Marka
• 金额: $ 48万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-15 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1404462&HistoricalAwards=false
• 关键词: Maximizing; Early; Detection; Science; Advanced

Direct detection of cosmic gravitational waves, an upcoming "disruptive innovation" in the field of astrophysics, will revolutionize our understanding of the universe in novel and plausibly unexpected ways. The key instruments for the new discoveries in the United States are the detectors of the advanced Laser Interferometer Gravitational-wave Observatory, aLIGO. The research program of the Columbia Experimental Gravity group supports upcoming gravitational wave discoveries by improving the quality of the aLIGO data-streams available for astrophysical science extraction. The group also pioneers data analysis involving multiple cosmic messengers and gravitational waves. Many cosmic objects with strong gravitational fields also possess the strongest magnetic fields, the densest (bulk) nuclear matter, and the highest neutrino fluxes in the universe. Mergers and emissions of these objects can guide us to new physics, and can tell us about elusive cosmic events. Combining information from different windows on the universe, including gravitational waves, will enable us to reconstruct cosmic mysteries of our times. Students from high school through graduate level will have the opportunity to participate in this research. The urban setting and existing outreach infrastructure of Columbia University will enable unique educational and outreach activities based on this research that target schools and the general public not only in the local community but also in the greater New York City metropolitan area.One of the critical limitations to aLIGO's scientific reach will be the artifacts embedded in the data due to disturbances in the detector's physical environment. The identification of environmental noise sources, the mitigation of their effect in the interferometers as well as the verification of instrument timing is vital (i) for ensuring a discovery that is justifiable to the broader scientific community, and (ii) for the realization of a spectrum of primary science goals for the LIGO Scientific Collaboration. These all rely on achieving the design sensitivity for the advanced detectors and on achieving the lowest possible false event rates. In particular, the group will provide expertise in detector noise performance, physical environmental monitoring, and detector diagnostics studies. The anticipated "dawn of gravitational-wave astronomy" will enable detailed analysis of the science reach of gravitational-wave searches. Building on past experience the Columbia Experimental Gravity group's scientific focus will be on the foundations, implications and science extraction from joint searches that may involve neutrinos, electromagnetic and other counterparts to gravitational-waves from cosmic explosions, mergers, and other sources.

直接检测宇宙引力波，这是天体物理学领域即将到来的“破坏性创新”，将在小说和合理的出乎意料的方式中彻底改变我们对宇宙的理解。美国新发现的关键工具是高级激光干涉仪重力波观测站的探测器。 哥伦比亚实验重力组的研究计划通过提高可用于天体物理学提取的Aligo数据流的质量来支持即将到来的重力波发现。该小组还涉及多个宇宙使者和引力波的数据分析。许多具有强力磁场的宇宙物体也具有最强的磁场，最密集的（大量）核物质和宇宙中最高的中微子通量。这些对象的合并和排放可以指导我们进入新物理学，并可以告诉我们难以捉摸的宇宙事件。结合来自宇宙不同窗口的信息，包括引力波，将使我们能够重建时代的宇宙奥秘。高中到研究生一级的学生将有机会参加这项研究。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市地区，这是对阿里格（Aligo）科学范围的关键局限性之一。鉴定环境噪声源，减轻其在干涉仪中的影响以及仪器时机的验证对于确保发现对更广泛的科学界合理的发现至关重要（i）以及（ii）实现Ligo Scientific Sc​​ientific Collactoration的主要科学目标的范围。这些都依赖于对高级探测器的设计敏感性以及实现最低可能的虚假事件率。特别是，该小组将提供探测器噪声性能，物理环境监测和探测器诊断研究方面的专业知识。预期的“引力波天文学的曙光”将对引力波搜索的科学范围进行详细分析。在过去的经验的基础上，哥伦比亚实验性重力小组的科学重点将是从联合搜索中提取的基础，含义和科学，这些搜索可能涉及中子，电磁和其他对应物，从宇宙爆炸，合并和其他来源中引起重力波。