MOCCA-SURVEY Database II -- Properties of Intermediate Mass Black Holes escaping from star clusters

Understand

In this work we investigate properties of intermediate-mass black holes (IMBHs) that escape from star clusters due to dynamical interactions.

• The studied models were simulated as part of the preliminary second survey carried out using the MOCCA code (MOCCA-SURVEY Database II), which is based on the Monte Carlo N-body method and does not include gravitational wave recoil kick prescriptions of the binary black hole merger product.
• We have found that IMBHs are more likely to be formed and ejected in models where both initial central density and central escape velocities have high values.
• Most of our studied objects escape in a binary with another black hole (BH) as their companion and have masses between $100$ and $140\: M_{\odot}$.