In the first Gravitational-Wave Transient Catalogue of LIGO and Virgo, all events are announced having zero eccentricity. In the present paper, we investigate the performance of SEOBNRE, which is a spin-aligned eccentric waveform model in time-domain. By comparing with all the eccentric waveforms in SXS library, we find that the SEOBNRE coincides perfectly with numerical relativity data. Employing the SEOBNRE, we re-estimate the eccentricities of all black hole merger events. We find that most of these events allow a possibility for existence of initial eccentricities at 10 Hz band, but are totally circularized at the observed frequency (≳ 20 Hz). The upcoming update of LIGO and the next generation detector like Einstein Telescope will observe the gravitational waves starting at 10 Hz or even lower. If the eccentricity exists at the lower frequency, then it may significantly support the dynamical formation mechanism taking place in globular clusters.

在 LIGO 和 Virgo 的第一个引力波瞬态目录中，所有事件都被宣布为零偏心率。在本文中，我们研究了 SEOBNRE 的性能，这是一种时域自旋对齐的偏心波形模型。通过与 SXS 库中的所有偏心波形进行比较，我们发现 SEOBNRE 与数值相对论数据完全吻合。使用 SEOBNRE，我们重新估计了所有黑洞合并事件的怪癖。我们发现大多数这些事件允许在 10 Hz 波段存在初始偏心率，但在观察到的频率 (≳ 20 Hz) 处完全圆化。即将更新的 LIGO 和像爱因斯坦望远镜这样的下一代探测器将观测从 10 Hz 甚至更低频率开始的引力波。