We study whether binary black hole template banks can be used to search for the gravitational waves emitted by general binary coalescences. To recover binary signals from noisy data, matched-filtering techniques are typically required. This is especially true for low-mass systems, with total mass $M \lesssim 10 \, M_\odot$, which can inspiral in the LIGO and Virgo frequency bands for thousands of cycles. In this paper, we focus on the detectability of low-mass binary systems whose individual components can have large spin-induced quadrupole moments and small compactness. The quadrupole contributes to the phase evolution of the waveform whereas the compactness affects the merger frequency of the binary. We find that binary black hole templates (with dimensionless quadrupole $\kappa=1$) cannot be reliably used to search for objects with large quadrupoles ($\kappa\gtrsim 20$) over a wide range of parameter space. This is especially true if the general object is highly spinning and has a larger mass than its binary companion. A binary that consists of objects with small compactness could merge in the LIGO and Virgo frequency bands, thereby reducing its accumulated signal-to-noise ratio during the inspiraling regime. Template banks which include these more general waveforms must therefore be constructed. These extended banks would allow us to realistically search for the existence of new astrophysical and beyond the Standard Model compact objects.

中文翻译：

---

用引力波寻找一般的二元旋涡

我们研究是否可以使用双黑洞模板库来搜索一般双星聚结发出的引力波。为了从噪声数据中恢复二进制信号，通常需要匹配滤波技术。对于总质量为 $M \lesssim 10 \, M_\odot$ 的低质量系统尤其如此，它们可以在 LIGO 和 Virgo 频段内进行数千次循环。在本文中，我们专注于低质量双星系统的可检测性，其单个组件可以具有大的自旋诱导四极矩和小的紧凑性。四极杆有助于波形的相位演化，而紧凑性会影响二进制的合并频率。我们发现二元黑洞模板（具有无量纲四极杆 $\kappa=1$）不能可靠地用于在广泛的参数空间范围内搜索具有大四极杆（$\kappa\gtrsim 20$）的物体。如果一般物体高度旋转并且质量大于其双星伴星，则尤其如此。由紧凑度较小的物体组成的双星可以在 LIGO 和 Virgo 频带中合并，从而降低其在励磁状态期间的累积信噪比。因此，必须构建包含这些更通用波形的模板库。这些扩展的银行将使我们能够真实地寻找新的天体物理学和标准模型之外的紧凑物体的存在。如果一般物体高度旋转并且质量大于其双星伴星，则尤其如此。由紧凑度较小的物体组成的双星可以在 LIGO 和 Virgo 频带中合并，从而降低其在励磁状态期间的累积信噪比。因此，必须构建包含这些更通用波形的模板库。这些扩展的银行将使我们能够真实地寻找新的天体物理学和标准模型之外的紧凑物体的存在。如果一般物体高度旋转并且质量大于其双星伴星，则尤其如此。由紧凑度较小的物体组成的双星可以在 LIGO 和 Virgo 频带中合并，从而降低其在励磁状态期间的累积信噪比。因此，必须构建包含这些更通用波形的模板库。这些扩展的银行将使我们能够真实地寻找新的天体物理学和标准模型之外的紧凑物体的存在。因此，必须构建包含这些更通用波形的模板库。这些扩展的银行将使我们能够真实地寻找新的天体物理学和标准模型之外的紧凑物体的存在。因此，必须构建包含这些更通用波形的模板库。这些扩展的银行将使我们能够真实地寻找新的天体物理学和标准模型之外的紧凑物体的存在。