GRAVITATIONAL-WAVE ASTRONOMY WITH BINARY COMPACT OBJECTS: SOURCE MODELING AND LIGO DATA ANALYSIS

双致密天体的引力波天文学：源建模和 LIGO 数据分析

• 批准号: 0969820
• 负责人: Vassiliki Kalogera
• 金额: $ 54.62万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-11-01 至 2013-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0969820&HistoricalAwards=false
• 关键词: GRAVITATIONAL; WAVE; ASTRONOMY; BINARY; COMPACT

This award supports research within the framework of the LIGO Scientific Collaboration (LSC) and the Compact Binary Coalescence (CBC) analysis group. It includes projects in the area of astrophysical interpretation of gravitational-wave signals from binaries with two compact objects, through both gravitational-wave data analysis and source modeling. Effectively the proposed work focuses on developing a concrete framework and a tool-kit for the processing of CBC detections (or upper limits) in order to extract the maximal available astrophysical information for binaries with compact objects with any mass and spin configuration. The research activity focuses on a number of key questions the answers to which are important for the interpretation of current and future gravitational-wave observations with LIGO. The next few years are very important for the development of gravitational-wave physics and its astronomical interpretation, and this research focuses on ways of maximizing the gain from future detections, but also from upper limits expected to constrain current theories of compact-object formation. This research is of interest to the broader community of compact-object astrophysics in a wide range of contexts: e.g., stellar and binary system evolution, neutron star and black hole formation and evolution, gamma-ray bursts, stellar dynamics of globular clusters and galactic centers, as in the coming years LIGO observations can provide uniquely reliable answers to some of the long-standing questions in astronomy and astrophysics. The Markov Chain Monte Carlo computational tools to be developed in this project will be made available within and outside the LSC, and hence can benefit LSC projects beyond the CBC searches and enhance the research infrastructure for parameter-estimation in other scientific and engineering contexts. Outreach activities take advantage of the existing collaboration with the Adler Planetarium & Astronomy Museum with hundreds of thousands of visitors per year; this connection ensures the broad dissemination of research understanding in the diverse, urban environment of the Chicago metropolitan area.

该奖项支持 LIGO 科学合作组织 (LSC) 和紧凑二元聚结 (CBC) 分析小组框架内的研究。它包括通过引力波数据分析和源建模对来自具有两个致密天体的双星引力波信号进行天体物理解释的项目。实际上，拟议的工作重点是开发一个用于处理 CBC 检测（或上限）的具体框架和工具包，以便为具有任何质量和自旋配置的紧凑物体的双星提取最大可用的天体物理信息。研究活动重点关注一些关键问题，这些问题的答案对于解释 LIGO 当前和未来的引力波观测非常重要。未来几年对于引力波物理学及其天文解释的发展非常重要，这项研究的重点是如何最大限度地提高未来探测的增益，同时也关注限制当前致密天体形成理论的上限。这项研究对更广泛的致密天体物理学界在广泛的背景下感兴趣：例如，恒星和双星系统的演化、中子星和黑洞的形成和演化、伽马射线爆发、球状星团和银河系的恒星动力学中心，因为在未来几年，LIGO 观测可以为天文学和天体物理学中一些长期存在的问题提供独特可靠的答案。该项目中开发的马尔可夫链蒙特卡罗计算工具将在 LSC 内部和外部提供，因此可以使 LSC 项目受益于 CBC 搜索之外，并增强其他科学和工程环境中参数估计的研究基础设施。外展活动利用了与阿德勒天文馆和天文博物馆的现有合作，每年有数十万游客；这种联系确保了研究理解在芝加哥大都市区多样化的城市环境中的广泛传播。