arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1602.05573astro-ph.IMcs.DCgr-qcphysics.data-an
收藏

引力波天体物理学、数据分析和多信使天文学

Gravitational wave astrophysics, data analysis and multimessenger astronomy

Hyung Mok Lee, Eric-Olivier Le Bigot, ZhiHui Du, ZhangXi Lin, XiangYu Guo, LinQing Wen, Khun Sang Phukon, Vihan Pandey, Sukanta Bose, Xi-Long Fan, Martin Hendry

摘要:

本文综述了引力波源及其探测。引力波最令人兴奋的潜在来源之一是合并的双黑洞系统。它们可以发生在所有的质量尺度上,并以多种方式形成,其中许多还不为人所知。它们在电磁波中通常是不可见的,它们为深入研究爱因斯坦的广义相对论提供了机会。本文的第一节考虑了双黑洞在宇宙中产生的方式,并预测双黑洞合并事件可能是第一个被探测到的引力波源。本文的下一部分解决了从噪声数据中的聚结事件检测啁啾波形。这种分析是计算密集型的。第2节介绍了一种基于GPU实现的求和并行无限脉冲响应滤波器的新的强大的信号检测方法。这种滤波器本质上是实时算法,可以用于快速检测和定位信号。论文的第3节回顾了使用GPU处理器快速搜索黑洞诞生和合并可能产生的引力波爆发。在第4节中,使用GPU处理器,使快速有效的统计显着性测试的引力波事件的候选人进行审查。本文第5节讨论了多信使天文学的方法,其中引力波事件的电磁对应物的发现可用于识别源、了解其性质并从每个已识别的事件中获得更大的科学成果。

英文摘要:

This paper reviews gravitational wave sources and their detection. One of the most exciting potential sources of gravitational waves are coalescing binary black hole systems. They can occur on all mass scales and be formed in numerous ways, many of which are not understood. They are generally invisible in electromagnetic waves, and they provide opportunities for deep investigation of Einstein's general theory of relativity. Sect. 1 of this paper considers ways that binary black holes can be created in the universe, and includes the prediction that binary black hole coalescence events are likely to be the first gravitational wave sources to be detected. The next parts of this paper address the detection of chirp waveforms from coalescence events in noisy data. Such analysis is computationally intensive. Sect. 2 reviews a new and powerful method of signal detection based on the GPU-implemented summed parallel infinite impulse response filters. Such filters are intrinsically real time alorithms, that can be used to rapidly detect and localise signals. Sect. 3 of the paper reviews the use of GPU processors for rapid searching for gravitational wave bursts that can arise from black hole births and coalescences. In sect. 4 the use of GPU processors to enable fast efficient statistical significance testing of gravitational wave event candidates is reviewed. Sect. 5 of this paper addresses the method of multimessenger astronomy where the discovery of electromagnetic counterparts of gravitational wave events can be used to identify sources, understand their nature and obtain much greater science outcomes from each identified event.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑