论文标题
从外来紧凑物体中建模引力波
Modeling gravitational waves from exotic compact objects
论文作者
论文摘要
外在的紧凑物体可能很难与重力波检测器观察到的二进制的灵感相位，但在合并和合并后信号中可能存在显着差异。我们介绍了一个玩具模型，该模型捕获了紧凑型物体的二进制二进制物的显着特征，紧凑型$ 0.2 $，在合并后不会迅速崩溃。我们使用它来评估其可检测性，并使用当前和将来的检测器，以及是否可以将它们与黑洞二进制区分开。我们发现，爱因斯坦望远镜（Lisa）可以观察到具有总质量$ \ Mathcal {o}（10^2）\ m _ {\ odot} $（$ 10^4-10^4-10^6 \ m _ {\ m _ {\ odot} $）的外来二进制，并与黑洞binimim coobsim coobsim coobsim coobsim coobse，用于高级Ligo。此外，我们表明，使用标准的黑洞模板进行检测可能会导致信噪比的损失高达$ 60 \％$，从而大大降低了我们观察这些信号的机会。最后，我们估计，如果Ligo/处女座合作发布的O1/O2目录中最大的事件是本文所考虑的，它们将留下可检测到模型敏锐性搜索的合并后信号，从而使这一假设不太可能。
Exotic compact objects can be difficult to distinguish from black holes in the inspiral phase of the binaries observed by gravitational-wave detectors, but significant differences may be present in the merger and post-merger signal. We introduce a toy model capturing the salient features of binaries of exotic compact objects with compactness below $0.2$, which do not collapse promptly following the merger. We use it to assess their detectability with current and future detectors, and whether they can be distinguished from black hole binaries. We find that the Einstein Telescope (LISA) could observe exotic binaries with total mass $\mathcal{O}(10^2) \ M_{\odot}$ ($10^4-10^6 \ M_{\odot}$), and potentially distinguish them from black hole binaries, throughout the observable Universe, as compared to $z\lesssim 1$ for Advanced LIGO. Moreover, we show that using standard black hole templates for detection could lead to a loss of up to $60\%$ in the signal-to-noise ratio, greatly reducing our chances of observing these signals. Finally, we estimate that if the loudest events in the O1/O2 catalog released by the LIGO/Virgo collaboration were ECO binaries as the ones considered in this paper, they would have left a post-merger signal detectable with model-agnostic searches, making this hypothesis unlikely.
