论文标题
来自二进制黑洞合并的重建引力波信号，其假设最少
Reconstructing gravitational wave signals from binary black hole mergers with minimal assumptions
论文作者
论文摘要
我们介绍了通过在Ligo和Pirgo源推理中使用的两种独立和互补方法重建的二进制黑洞（BBH）信号波形的系统比较：基于模板的分析以及与形态无关的分析。我们将两种方法应用于真实事件，并将两组模拟观测值应用于通过向Ligo和处女座检测器噪声添加模拟的BBH信号做出。第一组代表了第一个引力波瞬态目录（GWTC-1）中10个BBH事件。第二组是由具有总质量和信号强度的BBH系统构建的，基于地面检测器通常是敏感的。我们发现，GWTC-1事件的重建质量与两组模拟信号的结果一致。我们还证明了一个模拟的情况，即可以通过非形态独立的分析来识别观察到的信号中不晶型效应的存在，即高阶模式。这项研究与Ligo和处女座的当前进步和未来的观察性运行有关。
We present a systematic comparison of the binary black hole (BBH) signal waveform reconstructed by two independent and complementary approaches used in LIGO and Virgo source inference: a template-based analysis, and a morphology-independent analysis. We apply the two approaches to real events and to two sets of simulated observations made by adding simulated BBH signals to LIGO and Virgo detector noise. The first set is representative of the 10 BBH events in the first Gravitational Wave Transient Catalog (GWTC-1). The second set is constructed from a population of BBH systems with total mass and signal strength in the ranges that ground based detectors are typically sensitive. We find that the reconstruction quality of the GWTC-1 events is consistent with the results of both sets of simulated signals. We also demonstrate a simulated case where the presence of a mismodelled effect in the observed signal, namely higher order modes, can be identified through the morphology-independent analysis. This study is relevant for currently progressing and future observational runs by LIGO and Virgo.
