发表机构
University of Warsaw（华沙大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
研究通过引力波透镜效应探测宇宙弦，应用波动光学装置，探究放大因子等，基于模拟事件用贝叶斯推理估算弦张力，发现多数事件可基于信噪比检测，模拟观测估算值与注入值一致，结论是爱因斯坦望远镜能探测到宇宙弦。
AI 中文摘要
宇宙弦是早期宇宙中形成的尚未被证实的拓扑缺陷。它们能使光线或引力波弯曲，产生类似引力透镜的效应。我们的目标是检验爱因斯坦望远镜能否将宇宙弦作为引力波透镜进行探测。为此应用了波动光学装置。首先探究了放大因子强度及特性，接着研究了不同源倾角下信噪比和波形中的波动效应，最后基于“星迹”模拟的八次合并事件，用贝叶斯推理方法估算弦张力。波动效应在波形、信噪比和特征应变中易于观察到，多数事件可基于信噪比检测到，几乎所有特征应变都在爱因斯坦望远镜的范围内。模拟观测中，估算的宇宙弦张力对数为$\bar{\log{G\mu}}=-9.78^{+0.44}_{-0.49} $，与注入值$-10$一致。最终得出结论，爱因斯坦望远镜能够探测到宇宙弦。
英文摘要
Cosmic strings are not yet confirmed, topological defects formed in the early Universe. They can bend light or gravitational waves, which causes an effect similar to the gravitational lensing. Our goal is to check whether cosmic string could be detected as a lenses of gravitational waves by the Einstein Telescope (ET). To do that the apparatus of wave optics had been applied. Firstly we explored the amplification factor strength and behaviour. Next the wave effects in SNRs and waveforms was examined for different inclinations of the source. Lastly we estimated the string tensions based on eight mergers from the \textsc{StarTrack} simulation, using the Bayesian Inference methods. The wave effects were easily to see in waveforms, SNR and characteristic strains. Also most of the events could be detected, based on their Signal to Noise Ratio values. Almost whole characteristic strain lies in the range of the ET. When it comes to mock observations, we had got estimated vale of a logarithm of the CS tension equal to $\bar{\log{Gμ}}=-9.80^{+0.49}_{-0.56} $, which were consistent with injected value equal to $-10$. At the end we conclude that CSs could be detected by the ET.
Comments11 pages. 9 figures. Submitted to A&A, typo corrections applied
