Interactions among binary black holes in star clusters: Eccentric gravitational wave captures and triple formation

Open Access

Fig. 8

In blue, merger rate due to captures in BBH − BBH interactions as a function of redshift. In green, the same rate but only considering eccentric captures ( $e > 0.1$ , measured at $f_{22} = 10 H z$ $f_{22}=10 \mathrm{ Hz}$ as explained in Sect. 4.5). In yellow, the cluster formation rate of El-Badry et al. (2019), in the same units as the merger rate.

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