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，这是LIGO科学合作的一部分。激光干涉仪重力波观测站（Ligo）的主要目标是直接观察引力波（GWS），以便在宇宙上打开一个新窗口。它的广泛分离的干涉仪被一致使用，以搜索通过吸引天体物理现象发出的GWS，这些二进制中子星或超新星。这些天体物理源中的许多也有望以其他形式（例如伽马射线，光学光或中微子）检测到。在与检测到的伽马射线爆发，中微子和光学事件相对应的时间段内，对Ligo的分析是哥伦比亚实验重力组（GECO）的数据分析活动的主要重点。与观察伽马射线爆发或光学超新星观察到的GWS的检测是重力波天文学领域的长期以来的目标，这是对天体物理学来源的科学描述，这些描述是通过其他方式无法访问的。即使在其他窗口中观察到的事件的时间范围内，GWS的非检测也可以对基本现象施加约束。 GECO还应通过定时同步和诊断系统的设计和开发为高级LIGO探测器做出贡献。精确的检测器时正时同步和诊断对于确定GWS在单个LIGO仪器的空间分离部分和两个Ligo站点的空间分离部分以及与在其他窗口中观察到的事件进行协调至关重要。