Towards Multi-Messenger Astronomy with Gravitational Waves

利用引力波迈向多信使天文学

• 批准号: 0757982
• 负责人: Szabolcs Marka
• 金额: $ 9万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0757982&HistoricalAwards=false
• 关键词: Towards; Multi; Messenger; Astronomy; Gravitational

This award supports data analysis and instrumentation development research as part of the LIGO Scientific Collaboration. The Laser Interferometer Gravitational-Wave Observatory (LIGO)?s main goal is the direct observation of gravitational waves (GWs) in order to open a new window on the universe. Its widely separated interferometers are used in unison to search for GWs emitted by intriguing astrophysical phenomena such coalescing binary neutron stars or supernovae. Many of these astrophysical sources are also expected to be detectable in other forms such as gamma-rays, optical light or neutrinos. Analysis of LIGO?s recently collected data during time periods corresponding to detected gamma-ray burst, neutrino and optical events is the main focus of the data analysis activity of the Columbia Experimental Gravity group (GECo). The detection of GWs coincident with the observation of a gamma-ray burst or an optical supernova is a long awaited goal in the field of gravitational wave astronomy, promising scientific description of the astrophysical source that are inaccessible through other means. Even non-detections of GWs in the time frame of events observed in other windows can place constraints on the underlying phenomenon. GECo shall also contribute to the Advanced LIGO detectors, through the design and development of the timing synchronization and diagnostic systems. Precise detector timing synchronization and diagnostics are crucial to determine potential arrival times of GWs at spatially separated parts of a single LIGO instrument and at the two LIGO sites and to coordinate with events observed in other windows.

该奖项支持数据分析和仪器开发研究，作为LIGO科学合作的一部分。激光干涉引力波天文台（LIGO）的主要目标是直接观测引力波（GWs），以打开一个新的窗口，宇宙。它的广泛分离的干涉仪被统一用于搜索由有趣的天体物理现象（如合并的双中子星或超新星）发射的GW。这些天体物理源中的许多也有望以其他形式被探测到，如伽马射线、可见光或中微子。分析LIGO？最近在对应于探测到的伽马射线暴、中微子和光学事件的时间段内收集的数据是哥伦比亚实验重力组（GECo）数据分析活动的主要重点。与伽马射线爆发或光学超新星的观测相一致的GWs的检测是引力波天文学领域期待已久的目标，有希望通过其他手段无法获得的天体物理源的科学描述。即使在其他窗口中观察到的事件的时间范围内未检测到GW，也会对潜在现象产生限制。GECo还将通过设计和开发定时同步和诊断系统，为先进的LIGO探测器做出贡献。精确的探测器定时同步和诊断对于确定单个LIGO仪器的空间分离部分和两个LIGO站点的GWs的潜在到达时间以及与其他窗口中观察到的事件协调至关重要。