标题： 检查双黑洞啁啾质量分布中的间隙 显示英文标题

标题： Examining the Gap in the Chirp Mass Distribution of Binary Black Holes

摘要： 从引力波测量中推断出的双黑洞质量分布预计会揭示它们的形成情景。 质量分布中出现的新结构表明，在啁啾质量为$8M_\odot$、$14M_\odot$和$27M_\odot$附近存在多个峰值。 特别是，在啁啾质量为 10 到 12$M_\odot$之间缺乏观测。 在本信中，我们报告说，观测结果显著支持在狭窄的啁啾质量范围内抑制率的模型，而不是不包含抑制的模型，置信度大于 99.5%。 使用另一种测试，该测试衡量从两个模型中推断出的啁啾质量分布之间的偏差，我们保守地估计在存在特征的情况下有 95% 的置信度。 在组件质量分布中相同位置附近存在间隙的情况下，已报告缺乏置信度。 不同的结论是由于双黑洞的主要（两个质量中较重的那个）和次要（两个质量中较轻的那个）质量之间独特的相关性。 这种相关性导致测量的啁啾质量在特定值周围更加聚集。 显示英文摘要

摘要： The mass distribution of binary black holes inferred from gravitational wave measurements is expected to shed light on their formation scenarios. An emerging structure in the mass distribution indicates the presence of multiple peaks around chirp masses of $8M_\odot$, $14M_\odot$, and $27M_\odot$. In particular, there is a lack of observations between chirp masses of 10 and 12 $M_\odot$. In this letter, we report that observations significantly favour the model supporting suppression of the rate in a narrow chirp mass range compared to the model that doesn't include suppression at a confidence greater than 99.5\%. Using another test, which measures the deviation between the inferred chirp mass distributions from the two models, we conservatively estimate a 95\% confidence in the presence of a feature. A lack of confidence has been reported in the presence of a gap around a comparable location in the component mass distribution. The differing conclusions are due to a unique correlation between the primary~(heavier of the two masses) and the secondary~(lighter of the two masses) masses of binary black holes. This correlation results in increased clustering of measured chirp masses around specific values.