Using numerical relativity to model gravitational waves from binary black holes

使用数值相对论模拟双黑洞的引力波

• 批准号: 2727744
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2727744
• 关键词: Using; numerical; relativity; model; gravitational

Numerical solutions of the Einstein equations for the last orbits and merger of two black holes are essential to model the gravitational-wave signal from such systems, which are the prime source for gravitational-wave observations with Advanced LIGO and Virgo. Our current numerical codes allow us to simulate systems of moderate mass ratios, and for black holes with moderate spins. Improved numerical techniques, coordinate conditions and initial data will allow us to study systems with far higher mass ratios and spins. These systems are interesting to study for their physical properties alone, as well as being essential for modelling generic-binary waveforms for gravitational-wave astronomy with Advanced LIGO and Virgo, third-generation detectors such as Einstein Telescope and Cosmic Explorer, and the space-based detector LISA.

最后轨道和两个黑洞合并的爱因斯坦方程的数值解对于模拟此类系统的引力波信号至关重要，这些系统是高级 LIGO 和 Virgo 引力波观测的主要来源。我们当前的数字代码使我们能够模拟中等质量比的系统以及具有中等自旋的黑洞。改进的数值技术、坐标条件和初始数据将使我们能够研究具有更高质量比和自旋的系统。这些系统的物理特性值得研究，而且对于使用先进的 LIGO 和 Virgo、第三代探测器（例如爱因斯坦望远镜和宇宙探测器）以及太空探测器对引力波天文学的通用二元波形进行建模至关重要。基于 LISA 的探测器。